Sai

What Sai does

Sai Co., Ltd. (株式会社サイ) is a Japanese entertainment and healthcare-adjacent hardware company founded in April 2011 and headquartered in Saitama, Japan. The company operates two vertically distinct business lines under separate sub-brands: 'たーのリハ' (Ta no Riho) for rehabilitation support machines and items, and '全力遊援' (Zenryoku Yuen) for amusement arcade products. The rehabilitation product line consists of five core offerings — Hammer Frog (dual-hammer rhythm game for upper limb strength and cognitive function), Doki Doki Snake Extermination II (foot-based fall-prevention game), PON PON TOUCH! (touch-panel multi-content rehabilitation machine), Butting Boar Whack (hammer-based reaction game with progressive difficulty), and Brain Activity Boredom Sheet (polyethylene bubble sheet for cognitive training) — all designed to convert physical and cognitive rehabilitation into engaging game experiences for elderly users. The amusement line includes ticket redemption machines (Service Ticket Eater series 1 through 3), a Crayon Shin-chan-themed popcorn machine, Smart Bingo, Super Mole Strike, and Cube Mall 2.

The company generates revenue primarily through hardware sales. Rehabilitation machines are sold to healthcare facilities (nursing homes, daycare centers, hospitals, and clinics) through authorized dealer networks and direct sales, with quote-based pricing and multi-year contracts. Amusement products are sold directly to arcade facility operators. Sai markets through industry associations (notably the Japan Amusement Industry Association), academic conference presentations, regional media coverage, on-site demonstrations, and an online shop for consumer-accessible items. The company's clinical credibility is supported by partnerships with Kyushu University Hospital Rehabilitation Department and Kyorin University School of Medicine, with NIRS brain activity measurements and Japanese Dementia Prevention Society conference presentations demonstrating measurable efficacy. Products are distributed domestically across all major Japanese regions and internationally in Singapore, Macau, Hong Kong, and Taiwan. The company is privately held, with Sun Electronics Industrial Co., Ltd. and Idea Games Co., Ltd. listed as principal shareholders.

Name

Sai

Legal name

株式会社サイ (Sai Co., Ltd.)

Website

https://s-ai.co.jp

Company type

Private

Founded year

2011

Operating status

Operating

Short description

Sai Co., Ltd. is a Japanese entertainment hardware company that designs and sells rehabilitation gaming machines for elderly care facilities and amusement arcade products for game centers. It operates two sub-brands, 'たーのリハ' for clinical-research-backed rehabilitation hardware and '全力遊援' for arcade equipment, selling through authorized dealers and direct sales across Japan and select Asian markets.

Ownership category

akta.pro rank

Product category

Rehabilitation and Amusement Equipment

NAICS

Amusement Parks and Arcades (7131)

SIC

Services-Amusement & Recreation Services (7900)

akta.pro primary industry

Coin-Operated Entertainment (Pinball, Crane/Claw, Jukebox, Darts/Billiards) (MPAEAJAF)

akta.pro secondary industry

Arcade & Retro Gaming Hardware (Mini Consoles, Arcade Sticks, Cabinets) (HDACANAK)

Keywords

• Rehabilitation gaming machines
• Senior care equipment
• Amusement arcade machines
• Dementia prevention games
• Elderly physical therapy

Headquarters

HQ city

Saitama

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Rehabilitation Support Machines: Sale of rehabilitation gaming machines to healthcare facilities including nursing homes, daycare centers, hospitals, and clinics. Products include Doki Doki Snake Extermination II, Hammer Frog, PON PON TOUCH!, and Butting Boar Whack.
2. Rehabilitation Support Items: Sale of portable rehabilitation support items including the Brain Activity Boredom Sheet for home use and facility use.
3. Amusement Products: Sale of arcade amusement machines and parts including Crayon Shin-chan Popcorn machines, Service Ticket Eater 3, Service Ticket Dispenser, and Cube Mall 2 to arcade facility operators.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels5 records

Core offering

Sai Co., Ltd. designs, manufactures, and sells two product lines: (1) the "たのリハ (Ta no Riho)" line of rehabilitation support machines and items that gamify cognitive and physical therapy for elderly users, developed in collaboration with Kyushu University Hospital and Kyorin University School of Medicine; and (2) the "全力遊援 (Zenryoku Yūen)" line of amusement equipment including ticket redemption machines, a Crayon Shin-chan themed popcorn machine, and traditional arcade games sold to game center operators. The company combines 24 years of arcade industry experience with academic clinical research to deliver measurable health outcomes (prefrontal cortex activation, fall prevention, dementia prevention) through engaging gaming hardware.

Product overview

Sai Co., Ltd. operates two main product sub-brands: 'たのリハ (Ta no Riho)' for rehabilitation support machines and items, and '全力遊援 (Zenryoku Yūen)' for amusement products. The rehabilitation line includes 4 rehabilitation support machines (ドキドキへび退治Ⅱ, ハンマーフロッグ, PON PON TOUCH!, 猪突猛進！うり坊タタキ) and 1 rehabilitation support item (脳活！暇つぶシート), all designed for elderly users to improve cognitive and physical function through gamified rehabilitation with clinical research backing. The amusement line includes ticket redemption machines (サービスチケットイーター series), a themed popcorn machine (クレヨンしんちゃん), and traditional arcade games (スマートビンゴ, スーパーモグラたたき, キューブモール2).

Differentiator

Problem solved

Functional benefit

Products and services

• Doki Doki Snake Extermination II (ドキドキへび退治Ⅱ) A foot-based rehabilitation support machine where users step on snakes appearing on the floor display using muscles including the tibialis anterior, gastrocnemius, quadriceps, and rectus femoris to prevent falls. Features auto-adjusting difficulty based on first-half game performance, three manual difficulty levels, and was developed in collaboration with Kyushu University Hospital Rehabilitation Department and Kaikaya Co., Ltd. (a Bandai Namco Group subsidiary). Designed for elderly users in healthcare and nursing care facilities.
• Hammer Frog (ハンマーフロッグ) A dual-hammer rehabilitation support machine where users hit frog characters appearing on screen using both hands. NIRS brain activity measurements at Kyushu University Hospital Rehabilitation Department confirmed a significant increase in blood flow to the prefrontal cortex during gameplay. Supports upper-limb strength, cognitive judgment, reaction speed, and visual field expansion, and accommodates up to two players in cooperative mode. Designed for elderly users in healthcare and nursing care facilities.
• PON PON TOUCH! A touch-panel rehabilitation support machine offering six content selections ranging from reflex to thinking exercises. Supports standing or seated play, with large handrails and anti-tipping panels for safety. Achieved the No.1 facility utilization rate based on Sai's independent survey of installed facilities. Designed for users ranging from game beginners to advanced, and from healthy individuals to disabled and elderly persons in healthcare and nursing care facilities.
• Butting Boar Whack (猪突猛進！うり坊タタキ) A hammer-based rehabilitation machine where users hit LED-lit boar targets in rhythm with cues. Features three difficulty settings and a two-stage progression where the second "rush" stage gradually increases in speed and frequency. Displays score, hit rate, reflex speed, and "body age" results. Designed to support upper-limb reflex improvement and upper-body exercise for elderly users in healthcare and nursing care facilities.
• Brain Activity Free Time Sheet (脳活！暇つぶシート) A portable rehabilitation support item consisting of a polyethylene bubble sheet with puzzle challenges that users solve by popping bubbles with their fingers. Developed in cooperation with Kyorin University School of Medicine Department of Neuropsychiatry, which confirmed increased blood flow to the frontal lobe during use compared to a plain bubble sheet control. Designed for simple home or facility use for dementia prevention among elderly and disabled individuals.
• Crayon Shin-chan Otanko Morimori Popcorn (クレヨンしんちゃん おてんこもりもりポップコーン) A themed popcorn machine amusement product featuring the Crayon Shin-chan character. Officially licensed from Shogakukan, Shin-Ei Animation, TV Asahi, and ADK. Sold to arcade and family entertainment center operators as part of the 全力遊援 product line.
• Service Ticket Eater Series (サービスチケットイーター 1, 2, 3) A series of ticket redemption machines for amusement facilities, including the original (Service Ticket Eater, launched November 2017), Service Ticket Eater 2 (May 2019), and the latest Service Ticket Eater 3 (April 2023). Sold directly to arcade and game center operators under the 全力遊援 product line.
• Service Ticket Dispenser (サービスチケットディスペンサー) A ticket dispensing machine sold to amusement facilities and arcade operators alongside the Service Ticket Eater series under the 全力遊援 product line.
• Cube Mall 2 (キューブモール2) An amusement arcade machine product sold to game center operators. PDF product documentation is available on the company's website.
• Smart Bingo (スマートビンゴ) A bingo machine amusement product sold to arcade and game center operators under the 全力遊援 product line.
• Super Mole Strike (スーパーモグラたたき) A whack-a-mole style amusement arcade machine sold to game center operators under the 全力遊援 product line.

Quantifiable outcome

• Brain function improvement: Clinical research presented at the 8th Japanese Dementia Prevention Society Conference (September 2018) demonstrated that rehabilitation game use is effective in preventing onset and progression of dementia in healthy to MCI individuals
• +3 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered supporting and core.

• 株式会社かいかや (Kaikawa Co., Ltd.)supportingStrategic or Co-development Partner · 1 June 2015Subsidiary of Bandai Namco Group operating daycare centers and developing welfare services. Collaborated on Doki Doki Snake Extermination II development and brings entertainment industry expertise to combine with welfare sector knowledge.
• 杏林大学医学部精神神経科学教室 (Kyorin University School of Medicine Department of Neuropsychiatry)supportingStrategic or Co-development Partner · 1 June 2015Academic partner that conducted efficacy measurements for Brain Activity Boredom Sheet product. Confirmed increased frontal lobe blood flow during product use compared to control conditions.
• サン電子工業株式会社 (Sun Electronics Industrial Co., Ltd.)coreStrategic or Co-development Partner · 1 February 2013Manufacturing partner for rehabilitation support machines. Sun Electronics Industrial contributes manufacturing expertise from their domestic and overseas facilities (3 domestic and 1 overseas manufacturing base) to produce rehabilitation gaming machines designed for safe use by elderly and disabled individuals.
• 九州大学病院リハビリテーション部 (Kyushu University Hospital Rehabilitation Department)coreStrategic or Co-development Partner · 1 February 2013Clinical research partner conducting brain activity measurements (NIRS) and developing rehabilitation programs. Contributed to product design and efficacy validation through medical research, including fall prevention games and upper limb rehabilitation equipment. Dr. Takasugi Shinichiro serves as Associate Professor.
• 山上徹也 (Yamagami Tetsuya) - Gunma UniversitysupportingStrategic or Co-development Partner · 1 February 2013Co-researcher from Gunma University Graduate School of Health Sciences who presented research findings at the 8th Japanese Dementia Prevention Society Conference (2018) demonstrating the effectiveness of rehabilitation games in dementia prevention.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Bandai Namco Entertainment: Major Japanese entertainment conglomerate with significant arcade game machine operations and home console game development. Sai's partnership with Kaikaya (a Bandai Namco subsidiary) provides direct collaboration, and both companies share the Japan arcade and entertainment market.
• Konami: Japanese entertainment company with significant arcade game machine business alongside console and mobile games. Konami's arcade hardware and music game offerings compete for the same Japanese arcade operator budgets that Sai's Zenryoku Yuen line targets.
• SEGA: Major Japanese video game and arcade game developer with one of the largest arcade machine portfolios globally. Both companies develop and sell arcade amusement hardware targeting the same Japanese facility operators, though SEGA operates at materially larger scale.
• Taito: Japanese video game developer (creator of Space Invaders) owned by Square Enix, with strong arcade game machine operations including ticket redemption games. Comparable for arcade amusement equipment and ticket/redemption game development serving Japanese arcades.
• Universal Entertainment: Japanese pachinko and slot machine manufacturer with arcade amusement operations. Comparable for Japanese amusement/gaming machine hardware development and operator relationships, with overlapping customer base of Japanese arcade facility operators.
• Capcom: Japanese video game developer with arcade game machine operations alongside home console titles. Comparable for arcade machine development targeting the Japanese amusement market, though Capcom's arcade presence is a smaller fraction of overall revenue.
• Sun Electronics Industrial: Japanese arcade machine manufacturer and Sai's manufacturing partner since 2013, also a primary shareholder. Sun Electronics contributes manufacturing expertise from multiple production bases for both Sai's rehabilitation machines and broader arcade industry equipment.

Emerging players

• Akili Interactive: US-based digital therapeutics company developing FDA-cleared prescription video games for cognitive conditions including ADHD (EndeavorRx). Conceptually comparable to Sai's rehabilitation gaming products, with both companies developing clinically-validated video games for cognitive improvement, though Akili focuses on digital therapeutics delivery model.
• Cyberdyne: Japanese medical robotics company producing HAL exoskeleton and rehabilitation devices for elderly and disabled users. Comparable for medical rehabilitation hardware targeting Japan's aging population, though Cyberdyne focuses on robotic-assisted physical therapy rather than game-based rehabilitation.

Regional players

• IGS (International Games System): Taiwan-based arcade game machine manufacturer serving Asian amusement markets. Comparable for arcade hardware development in the broader Asian market and for serving markets where Sai has existing international presence (Taiwan, Hong Kong).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/sai_amusement
• Facebookfacebook.com/tanoriha

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Sai