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For the Inventor, By the Inventor

Tokyo, Japan

Hoya Corporation


USPTO Granted Patents = 2,565

% Expired Patents = 34.0



Trademarks = 86

Forward Citations = 21,446

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

goldMedal Osamu Nozawa (108 out of 108 patents)

silverMedal Tsutomu Shoki (76 out of 76 patents)

bronzeMedal 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

2,565 patents:

1. 12733791 - Endoscope having a nozzle element for cleaning a lens element (2026-09-15),
2. 12730299 - Endoscope (2026-09-08),
3. 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),
4. 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),
5. 12699218 - Optical glass, optical element blank, and optical element (2026-08-04),
6. 12692191 - Method for manufacturing annular glass substrate, annular glass substrate, and method for manufacturing glass substrate for magnetic disc (2026-07-28),
7. 12685432 - Measuring device for an endoscope for readjusting a maximum luminosity (2026-07-21),
8. 12675040 - Substrate with multilayer reflective film, reflective mask blank, method for manufacturing reflective mask, and method for manufacturing semiconductor device (2026-07-07),
9. 12667250 - Endoscopic spectral illumination device having LEDS emitting different wavelengths of light (2026-06-30),
10. 12662418 - Annular glass plate, method for manufacturing glass substrate for magnetic disk, glass substrate for magnetic disk, and magnetic disk (2026-06-23),
11. 12649687 - Method for producing ring-shaped object, film-forming device, ring-shaped object, and hard disk drive device (2026-06-09),
12. 12635853 - Endoscope apparatus (2026-05-26),
13. 12630458 - Method for manufacturing glass plate and method for manufacturing magnetic disk (2026-05-19),
14. 12629011 - Light source device and endoscope system (2026-05-19),
15. 12629008 - Endoscope comprising a flexible insertion tube and a bending portion (2026-05-19),
HOYA CORPORATION is a Japanese multinational company specializing in the manufacture and sale of precision optics, medical equipment, and imaging products. The company operates through five segments: Life Care, Information Technology, Eye Care, Imaging Systems, and Other. HOYA is known for its high-quality eyeglass lenses, intraocular lenses, endoscopic systems, and medical equipment. With a focus on technological innovation, HOYA strives to improve the quality of life for people worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

Hoya Corporation
2,565 Patents

#50 in Tokyo

#96 in Japan

#372 in the World

Tokyo, JP
Tokyo, Japan

Hoya Corporation

Forward Citations = 21,446

1,320 inventors:

goldMedal Osamu Nozawa (108 out of 108 patents)

silverMedal Tsutomu Shoki (76 out of 76 patents)

bronzeMedal Xuelu Zou (73 out of 73 patents)

4.  Hiroshi Nomura (69 out of 304 patents)

5.  Hiroaki Shishido (64 out of 64 patents)

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