Anzai Kantetsu

What Anzai Kantetsu does

Anzai Kantetsu Co., Ltd. (株式会社安斉管鉄) is a privately held Japanese machinery manufacturer founded in 1967 and incorporated in 1970, headquartered in Tsurumi-ku, Yokohama, with a secondary plant-engineering office in Kanagawa-ku. The company operates two distinct business divisions. The MCS (Micro-Nano Bubble Control System) division is anchored by the proprietary Hd-Nano (Hyperdense-Nanobubble) technology, a nanopore-based ultrafine-bubble generator that achieves a verified density of 10^10 bubbles per milliliter (confirmed by Malvern Instruments NanoSight) and approximately 90% gas transfer efficiency at energy consumption 1/200 that of conventional aeration. This platform has been extended into multiple product lines — ozone nanobubble water generators (batch units for lab/medical use and continuous industrial units at 20L/min), a wind-powered electricity-free Dyno generator, direct-heat ultrafine bubble generators, and consumer shower heads and bath systems — deployed across environmental water purification (Kanagawa Mitsuike Park, Tokyo Bay, Imperial Palace moat, Florida Martin County), aquaculture (Nagasaka Eel Farm), agriculture (Kochi Prefecture), and medical/sanitation use cases. The Equipment Division provides custom precision mechanical design and manufacturing for semiconductor, food and beverage, and chemical-industry customers (including Showa Denko, Sapporo Beer, and Nihon Shokken), imports and integrates European filling/packaging machinery from Universal Pack, Molins, Prewa, and IMP.A.C., and runs a plant-engineering arm doing pipe installation and maintenance at the Showa Denko Yokohama plant.

The company generates revenue primarily through one-time hardware sales of nanobubble generators and imported machinery, with custom projects quoted on a consultation basis and consumer shower/bath products priced below ¥100,000 (versus ¥300,000–¥500,000 competitor equivalents). Distribution is sales-led and direct, via website inquiries and sales consultation in Japan, with international projects executed through Florida-based Blue Nano Technologies and Environmental Compliance Equipment. The company is family-controlled, founded and led by President Satoshi Anzai, with Directors Tooru Anzai and Hiroko Anzai, no disclosed outside investors, registered capital of ¥10 million, and approximately 29 employees. Strategic positioning has shifted increasingly toward environmental applications and the Clean Water Mechanism, a carbon-credit (CDM/JCM) methodology for monetizing nanobubble-based aerobic water purification that won the Mitsubishi Research Institute ICF 2022 Grand Prize and the JIET×SIH International Business Contest 2024 Grand Prize.

Name

Anzai Kantetsu

Legal name

株式会社 安斎管鉄

Website

https://anzaimcs.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

Anzai Kantetsu Co., Ltd. is a Yokohama-based Japanese machinery manufacturer that designs and sells Hd-Nano ultrafine-bubble generators and precision custom equipment for environmental water purification, aquaculture, agriculture, and industrial customers in Japan and the United States.

Ownership category

akta.pro rank

Product category

Water Treatment Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Air and Gas Compressor Manufacturing (333912), Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

akta.pro secondary industries

Industrial Drying & Evaporation Equipment (Dryers, Evaporators, Crystallizers) (IMAHAEAD), DC-DC Converters & Power Modules (Isolated/non-isolated, POL modules) (IMAGADAB)

Keywords

• Ultrafine bubble generators
• Nanobubble water treatment
• Industrial precision machinery
• Ozone water generators
• Water purification systems

Headquarters

HQ city

Yokohama

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Nanobubble Generators and Devices: Sale of proprietary Hd-Nano ultrafine bubble generators including AZ-FB series (AZ-FB50A/L, AZ-FB100A/L, AZ-FB32A/S, AZ-FB150A, etc.). Industrial-scale units for water purification, aquaculture, agriculture. Also wind-powered units and ozone nanobubble water generators.
2. Ozone Water Generators: High-density ozone nanobubble water generators (batch type for lab/medical and continuous flow for industrial). Sold to livestock, medical, sanitation, and food processing facilities.
3. Custom Machine Design and Manufacturing: Precision mechanical design and manufacturing for semiconductor equipment, liquid mixing units, valves, pumps, inspection systems, and custom automation equipment. Includes imported filling and packaging machinery integration.
4. Imported European Machinery and Fillers: Import and sales of European industrial equipment including Universal Pack (vertical four-sided seal filling machines), Molins (special coffee bag filling), Prewa (tea packaging), IMP.A.C. (explosion-proof liquid filling and logistics systems). Includes maintenance and modification services.
5. Nanobubble Consumer Products (Shower, Bath): Carbonated nanobubble shower heads and nanobubble bath units sold to hair salons, pet salons, and households. No-power-required products with water-saving benefits.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Anzai Kantetsu designs and manufactures proprietary Hd-Nano (Hyperdense Nanobubble) ultrafine bubble generators using a nanopore-based ceramic method, producing 10^10 bubbles/mL with 90% gas transfer efficiency at energy consumption 1/200 of normal aeration. The product line spans the AzNano10^10 core generator, AZ-FB series ozone nanobubble water generators (batch and continuous), wind-powered Dyno systems, nanobubble shower heads and bath systems for consumer/salon use, plus precision mechanical design services and European imported filling/packaging machinery.

Product overview

Anzai Kantetsu operates two distinct business divisions: (1) The MCS (Micro-Nano Bubble Control System) Division, anchored by the AzNano10^10 ultrafine-pore nanobubble generator and its Hd-Nano (High-Density Nanobubble) technology, which produces the world's highest-concentration nanobubbles (10^10/mL) using a proprietary ceramic ultra-micro-pore method. The nanobubble platform spans multiple product lines — ozone nanobubble water generators (batch-type AZ-FB-03SW for lab/medical use and continuous AZ-FB-O3W for industrial processes), a wind-powered electricity-free Dyno nanobubble generator for environmental purification, nanobubble bath systems and shower heads for consumer/commercial use, and drinking water dispensers — unified by the same core generation technology but differentiated by gas type (air, oxygen, ozone, hydrogen) and application. Anzai Kantetsu also offers the Clean Water Mechanism, a proprietary environmental framework proposing carbon credit methodologies for aerobic water improvement. (2) The Equipment Division provides precision mechanical design and manufacturing (including semiconductor, filling, and inspection equipment), imports European filling/packaging machinery (UNIVERSAL PACK, MOLINS, Prewa, IMP.A.C.), and operates a plant engineering division for pipe installation and maintenance. Ancillary products include a manual soft ice cream dispenser (しぼってクリン) and torii gate construction services.

Differentiator

Problem solved

Functional benefit

Brands

• Hd-Nano: High-density nanobubble technology brand - generates 10^10 bubbles per ml, world-class concentration.
• しぼってクリン (Shibotte Kurin)
• ルミナス (Luminous)
• デオ (Deo)

Products and services

• AzNano10^10 Ultrafine Bubble (Nanobubble) Generator Proprietary high-density nanobubble generator producing 10^10 bubbles/mL using patented ultra-micro-pore ceramic method, with 90% gas transfer efficiency at 0.1 MPa differential pressure and 1 m/sec liquid flow velocity. Sold to government agencies, aquaculture farms, agricultural operations, and industrial customers for water purification, oxygenation, and sterilization applications.
• Batch-Type Ozone Nanobubble Water Generator (AZ-FB-03SW) Batch-type ozone nanobubble water generator producing up to 40 mg/L ozone concentration in 2L batches. Dimensions 60cm W × 35cm D × 98cm H, 30kg, AC100V/10A. Sold to medical institutions, laboratories, and research facilities for sterilization, wound treatment, and infection prevention.
• Continuous-Flow Ozone Nanobubble Water Generator (AZ-FB-O3W) Continuous-operation industrial ozone nanobubble water generator delivering 20L/min at 5mg/L ozone concentration. Dimensions 60cm W × 60cm D × 132cm H, 95kg. Sold to livestock farms, food processing facilities, and industrial customers for chemical-free sterilization and wastewater treatment.
• Wind-Powered Dyno Nanobubble Generator Electricity-free nanobubble generator using a vertical-axis Dyno windmill to directly drive pumps and compressors. Self-starts at 1 m/s wind speed, accepts 360-degree wind direction. Sold to government agencies and municipalities for environmental purification of lakes, seas, and ponds without electricity infrastructure.
• Carbonated Nanobubble Shower Head Carbonated nanobubble shower head producing micro/nano bubbles for beauty, scalp care, cleaning, sterilization, and deodorization. Sold to hair salons, pet salons, and households. Priced below 10万円 vs. competitor equivalents at 30-50万円. Uses 74g CO2 cylinder lasting ~1 month at 1 hour/day for household use, or 5kg cylinder serving ~4,000 customers for salon use.
• Commercial Nanobubble Bath System (Carbonated / Hydrogen) Carbonated or hydrogen nanobubble bath systems for skin care, detoxification, and health benefits. Sold to commercial bath facilities, hair salons, and households via direct sales.
• Nanobubble Drinking Water Dispenser Commercial dispenser producing hydrogen or oxygen nanobubble drinking water for health and wellness applications. Sold to offices, salons, and households.
• Custom Precision Mechanical Design and Manufacturing Services Custom mechanical design and manufacturing services including semiconductor equipment, liquid mixing units, valves, pumps, inspection systems, and custom automation equipment. Sold directly to enterprise customers including Sapporo Beer (keg inspection systems) and Nihon Shokken (powder container positioning). Includes maintenance and modification services.
• Imported European Filling and Packaging Machinery Distribution of European industrial filling and packaging equipment in Japan, including Universal Pack vertical four-sided seal filling machines, Molins wand-drip coffee bag fillers, Prewa tea packaging equipment, and IMP.A.C. explosion-proof liquid filling systems. Includes after-sales support, modification to Japanese standards, and maintenance services.
• Plant Engineering and Pipe Fitting Services (Yokohama Division) Chemical plant pipe installation, maintenance, fabrication, heavy equipment transport and installation, and construction services. Includes on-site work at Showa Denko's Yokohama plant. Sold through direct enterprise contracts.
• Nanobubble Ozone Generator Device Ozone gas generation device leveraging nanobubble technology for water treatment and sterilization. Adjustable ozone output controlled by lamp count. Sold for industrial and commercial sterilization applications.

Quantifiable outcome

• 10^10 bubbles/mL (100 billion nanobubbles per milliliter) - world's highest concentration verified by Malvern Instruments
• +7 more outcomes

Named customers11 records

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Blue Nano TechnologiescoreStrategic or Co-development Partner · 1 January 2016Florida-based water remediation company that imports Anzai Kantetsu's nanobubble technology to the USA for blue-green algae cleanup projects. Partner in lake purification activities in Martin County, Florida. Featured on FOX TV nationally as technology provider for algae mitigation efforts. Collaboration includes technical deployment and adaptation for US water bodies.
• Environmental Compliance Equipment (Florida)minorChannel Partner/ Reseller/ Distributor · 1 January 2016Local Florida partner and importer of Anzai Kantetsu's nanobubble technology for US market deployment. Owned by Stuart resident, facilitating local installation and technical support for Florida water purification projects.
• Major US Research Institution (collaboration ongoing)coreStrategic or Co-development Partner · 1 January 2016Active collaboration with a major US research institution on lake purification projects in Florida, USA. Anzai Kantetsu's technology is being studied and deployed for large-scale algae remediation in American waterways. Development of methodologies and scientific validation of nanobubble-based water purification.
• National Institute of Advanced Industrial Science and Technology (AIST)coreStrategic or Co-development PartnerProfessor Masayoshi Takahashi's research group at AIST has conducted cell protection research showing nanobubble-treated oysters survive freezing at -20°C. AIST is cited as a source for scientific validation of nanobubble technology effectiveness in aquaculture and environmental applications.
• Ariake National College of Technology (有明工業高等専門学校)minorStrategic or Co-development PartnerProfessor Himuro's research department conducted scampi (shrimp) growth promotion studies using nanobubble technology. Published research paper confirming 20-30% size improvement in shrimp growth.
• Yokohama City / Kanazawa WardcoreStrategic or Co-development PartnerMunicipal government partner for Tokyo Bay water purification experiments. June 2013 installation of oxygenated nanobubble generator at 8m depth near Kanazawa ward for 2.5-month environmental monitoring. Results showed significant increases in benthic organism population and biodiversity.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Others

• Idex Corporation: US-based industrial conglomerate with fluidics, pumps, and dispensing technology businesses. Represents a potential acquirer or adjacent technology partner in the precision machinery side of Anzai Kantetsu's business.

Broad incumbents

• Hitachi Industrial Equipment Systems: Industrial equipment arm of Hitachi group producing compressors, pumps, and process equipment for water treatment and industrial gas applications. Broad incumbent with the scale to enter nanobubble/environmental purification if the market expands.
• Organo Corporation: Japanese specialty water treatment company serving semiconductor, pharmaceutical, and industrial water markets with broader portfolio of purification equipment and chemicals. Incumbent in the same end markets Anzai Kantetsu targets.
• Kurita Water Industries Ltd. Major Japanese industrial water treatment company offering comprehensive water purification, chemical dosing, and ultrapure water solutions. Represents established competition in the broader industrial water purification market where Anzai Kantetsu's nanobubble technology is positioned.
• Showa Denko: Diversified Japanese chemical company that is simultaneously a customer (Yokohama plant engineering services) and a potential adjacent competitor in industrial gases and water treatment chemistry used alongside nanobubble equipment.

Direct peers

• Nikuni Co., Ltd. Japan-based manufacturer of microbubble and nanobubble generators. Direct competitor in the ultrafine bubble equipment market with comparable ceramic-membrane and pump-based product lines targeting food processing, water treatment, and industrial applications.
• Moleaer: US-based nanobubble technology company focused on industrial water treatment, agriculture, and aquaculture. Most prominent global direct competitor in the nanobubble space with significant venture funding and international deployment footprint.
• Nanox Co., Ltd. Japanese nanobubble technology company developing ultrafine bubble generators for agriculture, fisheries, and environmental applications. Overlapping product portfolio and customer segments in Japan.

Emerging players

• AquaNano Technologies: Emerging nanobubble-focused company developing ultrafine bubble generators for agriculture and aquaculture applications. Partial overlap with Anzai Kantetsu's Hd-Nano agricultural and aquaculture product lines.
• Pacific Ozone: US-based manufacturer of industrial ozone generators and ozone water systems for food processing, agriculture, and water treatment. Overlaps with Anzai Kantetsu's Hd-ONW ozone nanobubble water generator product line in target use cases.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@anzaikantetsu1678/videos

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Anzai Kantetsu