Best Photonics Companies in Japan
The 35 best Photonics companies in Japan in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Kyulux.
Ranked: Best Photonics companies in Japan
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Kyulux Provider of OLED lighting systems | $86M | 5 mo ago | Series B | Akira Minakuchi Co-Founder & CFO | 2015 | WordPressApple iCloud MailGoogle Workspace+23 | 520 patents OLED materials and device structures for high-efficiency organic light-emitting displays | — |
| 2 | ThinkCyte Developer of cell sorting and single cell profiling platforms | $83M | 25 mo ago | Series C | Ryoichi Horisaki Co-Founder | 2016 | WordPressMySQLPHP+28 | 95 patents Advanced flow cytometry hardware and AI-driven cellular sample classification | — |
| 3 | QD Laser Developer of nanotech-based quantum dots for energy generation | $50M | 90 mo ago | Public | — | 2006 | WordPressMySQLPHP+11 | 196 patents Advanced optical projection and ophthalmic imaging systems using semiconductor lasers | — |
| 4 | Hikari.com Manufacturer of optical comb generators and non-contact 3D profilometers, multipoint vibrometers | $16M | 102 mo ago | Series B | Takao Yagi CEO | 2002 | HubSpot CMS HubHubSpotSalesforce Marketing Cloud Account Engagement+9 | — | — |
| 5 | Koala Tech Developer of organic semiconductor laser diodes for advanced electronic applications | $4M | 23 mo ago | Series B | Jean Ribierre CEO | 2019 | WordPressMySQLPHP+13 | — | — |
| 6 | Rigaku Provider of XRD, XRF, SAXS, Raman, metrology and crystallography solutions | — | 19 mo ago | Acquired | — | 1951 | HubSpot CMS HubSalesforceMathJax+17 | 2 patents Production of conductive polythiophene solutions/dispersions for polymer electronics | — |
| 7 | AIO Core Silicon photonics base transceivers provider | — | 24 mo ago | Seed | Kazuhiko Kurata Co-Founder | 2017 | WixSentryBootstrap+12 | 7 patents Optoelectronic modules and laser components for fiber-optic communication systems | — |
| 8 | KOSKA Corporation Developer of IoT hardware systems for cost analysis of industrial operations | — | 72 mo ago | Seed | Kenichiro Sone CEO & President | 2018 | Amazon Web ServicesAstroPostHog+14 | — | — |
Top 10 Photonics companies in Japan
#1
Series B · Fukuoka, Fukuoka · founded 2015 · 5 employees$85.7Mraised▾
Provider of OLED lighting systems. It offers TADF OLED (Thermally Activated Delayed Fluorescence Organic Light Emitting Diode) technology for display and lighting. The company offers hyper fluorescence OLEDs, which combine TADF and fluorescence emitters to enable highly efficient emission.
- May 2026Series B—
- Sep 2023Series B$1.4M
- Feb 2021Series B$34.3M
- May 2019Series B$31.8M
#2
Series C · Bunkyo, Tokyo · founded 2016 · 33 employees$83.2Mraised▾
Developer of cell sorting and single cell profiling platforms. The business provides tools for cell therapy, disease profiling, and drug discovery applications. The platforms combine fluorescence flow cytometry with morphological profiling and artificial intelligence. The business also offers related consumables and instrument services.
- Aug 2024Series C$14.9M
- Nov 2023Series C$24M
- Nov 2023Grant (prize money)—
- May 2021Series B$26M
#3
Series B · Fukuoka, Fukuoka · founded 2019$3.9Mraised▾
Developer of organic semiconductor laser diodes for advanced electronic applications. The company focuses on integrating organic light-emitting diode structures with laser technology. This integration aims to create versatile light sources applicable to displays and sensing technologies. The goal is to provide solutions for the organic semiconductor device sector.
- Nov 2024Series B$3.7M
- Dec 2023Series B$2.5M
- Mar 2020Seed$1.4M
- Jul 2019Seed—
#4
Public · Kawasaki, Kanagawa Prefecture · founded 2006 · 58 employees$50.4Mraised▾
Developer of nanotech-based quantum dots for energy generation. It provides quantum dot lasers, semiconductor optical devices, and amplifiers. The product line of the company includes distributed feedback lasers for precision machining, quantum dot lasers for optical communications, epitaxial wafer on GaAs substrate, visible laser sensors, and Fabry-Perot lasers. The company also offers smart eyewear based on Direct retinal projection which precisely controls the light to project images onto the retina.
- Apr 2019Series C$33M
- Oct 2018Series C—
- Dec 2010Series B$9.6M
- Feb 2009Series A$7.8M
#5
Series B · Chiyoda City, Tokyo · founded 2002$15.7Mraised▾
Manufacturer of optical comb generators and non-contact 3D profilometers, multipoint vibrometers
- Apr 2018Series B$12.1M
- Mar 2016Series A$3.5M
#6
Acquired · Tokyo, Tokyo · founded 1951 · 293 employees—raised▾
Provider of XRD, XRF, SAXS, Raman, metrology, and crystallography solutions. The company offers material measurements and analysis including X-ray diffraction (XRD), X-ray spectrometry (XRF), SAXS, protein and small molecule X-ray crystallography, Raman, X-ray optics, semiconductor metrology, X-ray sources, tomography, non-destructive testing, and thermal analysis.
#7
Seed · Bunkyo, Tokyo · founded 2017—raised▾
AIOCORE designs and develops of silicon photonics base transceivers. The company designs and manufactures silicon-photonics transceivers used in the data centers, between enclosures, between AV equipment, between boards, and within boards.
- Sep 2024Seed—
- Mar 2020Seed—
#8
Seed · Minato City, Tokyo · founded 2018 · 10 employees—raised▾
Koska is a developer of IoT hardware systems for cost analysis of industrial operations and visualize the production situation in the field using the dashboard. It uses the network of acceleration sensors, camera sensors, and weight sensors for capturing the data for enabling the income and expenditure management in factories and production lines. The dashboard performs the variance analysis and factor identification and provides real-time analysis of the business situation.
- Oct 2020Seed—
#9
Public · Hamamatsu, Shizuoka · founded 1953 · 238 employees—raised▾
Manufacturer of optical sensors, components, cameras, light sources, and systems. The company provides devices and units, including optical sensors and components. Cameras, light and radiation sources, and laser systems are also offered. These systems support manufacturing, photometry, life science, and medical applications.
#10
Acquired · Osaka, Osaka · founded 2003 · 9 employees—raised▾
Developer of Raman microscopy instruments and related components for material analysis. The company provides systems for various applications, including semiconductor, battery, and carbon material research. Product offerings include laser Raman microscopes, wafer analyzers, and UV/DUV microscopy systems. Also available are accessories such as lenses and polarization components.
- Jun 2016PE—
Funding & investor landscape
Notable founders
How research on Photonics & Optoelectronics is moving in Japan
A read on the academic research around Photonics & Optoelectronics — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 2,685 Japan-affiliated papers.
- National Institute for Materials Science239
- The University of Tokyo216
- Korea University178
- National Institute of Advanced Industrial Science and Technology176
- Tohoku University164
- Fabrication7→94
- Laser3→68
- Perovskite (structure)11→58
- Electrode1→48
- Diode1→48
- Fabrication1→90
- Laser1→66
- Electrode4→43
- Perovskite (structure)6→44
- Doping4→41
- Perovskite (structure)3→8
- Diode2→7
- Reliability (semiconductor)1→5
- Nanoscopic scale1→4
Where photonics is researched across Japan
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing photonics patents in Japan
Japan photonics patent filing is cooling — 90,946 filings from 8,000 assignees (2016–2025), led by Sharp KK, Semiconductor Energy LAB, Nitto Denko; annual filings 10244→6518.
- Sharp KK18581
- Semiconductor Energy LAB10026
- Nitto Denko9167
- Japan Display8465
- Seiko Epson7724
- SONY7043
- Sumitomo Electric Industries7018
- Fujifilm6407
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.