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Hoya Corporation

USPTO Granted Patents = 2,566

% Expired Patents = 34.0

CIPO Patents = 6

EPO Patents = 281

Trademarks = 86

Forward Citations = 21,446

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1,320 inventors (with patents filed for the assignee):

Osamu Nozawa (108 out of 108 patents)

Tsutomu Shoki (76 out of 76 patents)

Xuelu Zou (73 out of 73 patents)

4. Hiroshi Nomura (69 out of 304 patents)

5. Hiroaki Shishido (64 out of 64 patents)

6. Masahiro Hashimoto (57 out of 69 patents)

7. Shinya Suzuka (38 out of 54 patents)

8. Yukio Uenaka (37 out of 73 patents)

9. Kazuhiro Hamamoto (36 out of 37 patents)

10. Kazuaki Hashimoto (36 out of 37 patents)

11. Yasuhiro Fujiwara (36 out of 63 patents)

12. Mikio Ikenishi (35 out of 35 patents)

13. Atsushi Kominato (34 out of 34 patents)

14. Masaru Tanabe (34 out of 34 patents)

15. Shuichi Takeuchi (34 out of 70 patents)

Core Competencies:

Endoscope

Illumination System

Semiconductor Manufacturing

Optical Filter

Magnetic Disk

Reflective Mask

Glass Substrate

Phosphor Illumination

Image Processing

Multilayer Reflective Film

Electronic Endoscope

Video Signal Detection

2,566 patents: Sort by Forward Citations

1. 12761542 - Reflective mask blank, reflective mask, method for manufacturing reflective mask, and method for manufacturing semiconductor device (2026-10-13),

2. 12733791 - Endoscope having a nozzle element for cleaning a lens element (2026-09-15),

3. 12730299 - Endoscope (2026-09-08),

4. 12722997 - Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device (2026-09-01),

5. 12699314 - Multilayered-reflective-film-provided substrate, reflective mask blank, reflective mask, method of manufacturing reflective mask, and method of manufacturing semiconductor device (2026-08-04),

6. 12699218 - Optical glass, optical element blank, and optical element (2026-08-04),

7. 12692191 - Method for manufacturing annular glass substrate, annular glass substrate, and method for manufacturing glass substrate for magnetic disc (2026-07-28),

8. 12685432 - Measuring device for an endoscope for readjusting a maximum luminosity (2026-07-21),

9. 12675040 - Substrate with multilayer reflective film, reflective mask blank, method for manufacturing reflective mask, and method for manufacturing semiconductor device (2026-07-07),

10. 12667250 - Endoscopic spectral illumination device having LEDS emitting different wavelengths of light (2026-06-30),

11. 12662418 - Annular glass plate, method for manufacturing glass substrate for magnetic disk, glass substrate for magnetic disk, and magnetic disk (2026-06-23),

12. 12649687 - Method for producing ring-shaped object, film-forming device, ring-shaped object, and hard disk drive device (2026-06-09),

13. 12635853 - Endoscope apparatus (2026-05-26),

14. 12630458 - Method for manufacturing glass plate and method for manufacturing magnetic disk (2026-05-19),

15. 12629011 - Light source device and endoscope system (2026-05-19),

Company Overview

Hoya Corporation, headquartered in Tokyo, Japan, is a leading global provider of advanced optical products and solutions. The company specializes in endoscope technology, focusing on the development and manufacturing of high-quality endoscopes and illumination systems for medical applications. Hoya also excels in semiconductor manufacturing, producing optical filters, reflective masks, and glass substrates. With a commitment to innovation, Hoya plays a significant role in enhancing imaging technologies across various sectors, including healthcare and electronics.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2,566 Patents

#50 in Tokyo

#96 in Japan

#374 in the World

Hoya Corporation

Forward Citations = 21,446

1,320 inventors:

Osamu Nozawa (108 out of 108 patents)

Tsutomu Shoki (76 out of 76 patents)

Xuelu Zou (73 out of 73 patents)

4. Hiroshi Nomura (69 out of 304 patents)

5. Hiroaki Shishido (64 out of 64 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hoya Corporation. Retrieved from https://idiyas.com/company/hoya

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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