Koike
Koike is a Japanese manufacturer founded in 1946 that produces crystal oscillators and SAW wafers for electronic devices. The company supplies frequency-control and RF filtering components to electronics OEMs across telecommunications, automotive, and consumer markets.
- Company typePrivate
- Founded1946
- HeadquartersYamanashi, Japan
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Koike does
Koike is a Japanese manufacturing company founded in 1946 and headquartered in Yamanashi, Japan, operating as a private for-profit entity with 101-250 employees. The company specializes in producing crystal oscillators and SAW (Surface Acoustic Wave) wafers, which are foundational components in modern electronic devices. Crystal oscillators generate precise frequency references used in timing circuits across consumer electronics, telecommunications infrastructure, automotive electronics, and industrial control systems, while SAW wafers serve as the substrate for SAW filters deployed in RF front-end modules for wireless communication devices such as smartphones and base stations.
The company's product portfolio positions it in the upstream electronic components supply chain, supplying frequency-control and RF filtering building blocks to device OEMs and module integrators. With 78+ years of continuous operation, Koike sits within Japan's established precision manufacturing ecosystem, suggesting deep process expertise in crystal growth, wafer fabrication, and device packaging — capabilities that require significant accumulated know-how to develop and maintain at production-grade quality.
The business model is B2B component manufacturing, but specific details on pricing model, distribution channels, customer mix, end-market segment exposure, and revenue mechanics are not disclosed in the available source material. Detailed information on headcount composition, GTM motion, partnerships, certifications, and operating geographies is also absent from the provided data, which constrains the depth of business-model inference available for this analysis.
Koike firmographics
Firmographics- Name
- Koike
- Website
- https://koike-corp.co.jp
- Company type
- Private
- Founded year
- 1946
- Headcount range
- 101–250 employees
- Short description
- Koike is a Japanese manufacturer founded in 1946 that produces crystal oscillators and SAW wafers for electronic devices. The company supplies frequency-control and RF filtering components to electronics OEMs across telecommunications, automotive, and consumer markets.
- Ownership category
- akta.pro rank
Koike industry classification
Industry- Product category
- Electronic Components Manufacturing
- NAICS
- Semiconductor and Other Electronic Component Manufacturing (33441)
- SIC
- Semiconductors & Related Devices (3674)
- akta.pro primary industry
- Frequency Control Components (Quartz Crystals/Oscillators/Resonators) (HDAHANAF)
- akta.pro secondary industries
- RF MEMS & Resonators (SAW/BAW/Filters/Timing) (HDAHALAI), Timing, Frequency & Oscillator Components (Crystals, oscillators, resonators, clock generators) (IMAGAJAH)
Keywords
Where Koike is headquartered
LocationHeadquarters
- HQ city
- Yamanashi
- HQ country
- Japan
- HQ region
- Asia
Markets served
Koike business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Koike product offering
Product offeringCore offering
Koike manufactures and supplies crystal oscillators and SAW (Surface Acoustic Wave) wafers that serve as precision frequency control and signal processing components inside electronic devices. These products are sold to electronics manufacturers for use in timing, filtering, and frequency-stabilization applications.
Differentiator
Problem solved
Functional benefit
Products and services
- Crystal oscillators Precision-manufactured crystal oscillator components used for frequency control and timing in electronic devices, sold to electronics manufacturers and OEMs.
- SAW wafers Surface Acoustic Wave (SAW) wafers used as foundational substrates for signal processing and frequency filtering components in electronic devices, supplied to electronics manufacturers.
Companies that use Koike
Customer profileIdeal customer profiles1 record
Koike technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Koike competitors and assessment
Company assessmentDirect peers
- TXC Corporation: TXC is a Taiwanese manufacturer specializing in frequency control products, including crystal oscillators and SAW devices. It is a direct peer to Koike given its comparable product portfolio in the same frequency-control component category.
- Daishinku (KDS): KDS is a Japanese crystal device manufacturer producing quartz crystal resonators, oscillators, and SAW devices. It is a direct competitor to Koike across both core product categories and a similar mid-sized Japanese niche player.
- Rakon: Rakon is a New Zealand-based designer and manufacturer of frequency control products, including crystal oscillators and TCXOs. It is a direct peer to Koike in crystal oscillator manufacturing for communications, GPS, and industrial applications.
- Nihon Dempa Kogyo (NDK): NDK is one of the world's largest manufacturers of quartz crystal oscillators and SAW devices, headquartered in Japan. It is directly comparable to Koike because it operates in the same frequency-control components category with overlapping crystal oscillator and SAW product lines.
Emerging players
- SiTime: SiTime is a US-based leader in silicon MEMS oscillators that directly competes with traditional quartz crystal oscillators. It represents a technology-substitution peer that threatens Koike's core crystal oscillator business.
Broad incumbents
- Qorvo: Qorvo is a leading US RF solutions company producing both SAW and BAW filters for handsets and wireless infrastructure. It is a broad incumbent comparable to Koike through its role as a major buyer and user of SAW wafer technology.
- Taiyo Yuden: Taiyo Yuden is a Japanese electronic components manufacturer with a substantial SAW filter business. It is comparable to Koike through its use of SAW wafer inputs and overlapping participation in the RF filter value chain.
- TDK: TDK is a major Japanese electronic components company with a strong presence in SAW filters and RF components. It is comparable to Koike through its RF filter and SAW device activities, though it operates across a much broader product portfolio.
- Murata Manufacturing: Murata is the global leader in SAW filters and a major manufacturer of electronic components including resonators and timing devices. It overlaps with Koike in the SAW wafer supply chain as a dominant customer and competing component supplier.
- Seiko Epson: Seiko Epson is a major Japanese electronics manufacturer with a significant crystal device division producing crystal oscillators and timing solutions. It is a broader incumbent that overlaps with Koike's oscillator business but operates at much greater scale and product breadth.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat3 records
Key risks5 records
Key highlights5 records
Customer concentration
Koike social profiles
Digital presenceKoike financial estimates
Financial estimateRevenue estimate
Valuation estimate
Koike leadership team
Management profileNumber of profiles
Koike funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Koike M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Koike
What does Koike do?
Koike manufactures and supplies crystal oscillators and SAW (Surface Acoustic Wave) wafers that serve as precision frequency control and signal processing components inside electronic devices. These products are sold to electronics manufacturers for use in timing, filtering, and frequency-stabilization applications.
When was Koike founded?
Koike was founded in 1946. It employs 101 to 250 people.
Where is Koike based?
Koike is headquartered in Yamanashi, Japan, in the Asia region.
Who are Koike's main competitors?
Direct peers on record are TXC Corporation, Daishinku (KDS), Rakon and Nihon Dempa Kogyo (NDK). SiTime is listed as an emerging player. Broad incumbents are Qorvo, Taiyo Yuden, TDK, Murata Manufacturing and Seiko Epson.
Does Koike have an API?
No public API is recorded for Koike.
What industry is Koike in?
Koike's product category is Electronic Components Manufacturing. Its primary akta.pro industry code is HDAHANAF, Frequency Control Components (Quartz Crystals/Oscillators/Resonators), with a secondary code of HDAHALAI, RF MEMS & Resonators (SAW/BAW/Filters/Timing). Its NAICS code is 33441 and its SIC code is 3674.