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For the Inventor, By the Inventor

Tokyo, Japan

Hoya Corporation


USPTO Granted Patents = 2,535



Trademarks = 108

Forward Citations = 21,068

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1,307 inventors (with patents filed for the assignee):

goldMedal Osamu Nozawa (107 out of 107 patents)

silverMedal Tsutomu Shoki (76 out of 76 patents)

bronzeMedal Xuelu Zou (73 out of 73 patents)

4.  Hiroshi Nomura (69 out of 302 patents)

5.  Hiroaki Shishido (64 out of 64 patents)

6.  Masahiro Hashimoto (57 out of 66 patents)

7.  Shinya Suzuka (38 out of 54 patents)

8.  Yukio Uenaka (37 out of 73 patents)

9.  Kazuhiro Hamamoto (36 out of 36 patents)

10.  Yasuhiro Fujiwara (36 out of 63 patents)

11.  Mikio Ikenishi (35 out of 35 patents)

12.  Atsushi Kominato (34 out of 34 patents)

13.  Masaru Tanabe (34 out of 34 patents)

14.  Shuichi Takeuchi (34 out of 70 patents)

15.  Kazuaki Hashimoto (33 out of 34 patents)


Core Competencies:
Glass Manufacturing
Magnetic Recording Medium
Endoscope Systems
Semiconductor Devices
Reflective Masks
Illumination Systems
Optical Elements
Machine Learning Models
Video Signal Processing
Flexible Insertion Tubes
Near-Infrared Filters
Polishing Liquids

2,535 patents:

1. 12529953 - Mask blank, phase shift mask, and method of manufacturing semiconductor device (2026-01-20),
2. 12527462 - Endoscope and endoscope system (2026-01-20),
3. 12521000 - Endoscope (2026-01-13),
4. 12517422 - Reflective mask blank, reflective mask, and method of manufacturing semiconductor device (2026-01-06),
5. 12514440 - Endoscope (2026-01-06),
6. 12507879 - Distal end having a free space between camera and working channel (2025-12-30),
7. 12499545 - Endoscope processor and endoscope system (2025-12-16),
8. 12479755 - Glass for magnetic recording medium substrate or for glass spacer for magnetic recording and reproducing apparatus (2025-11-25),
9. 12479751 - Method for producing glass plate, and laminate (2025-11-25),
10. 12475924 - Substrate for magnetic disk and magnetic disk (2025-11-18),
11. 12473225 - 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, and magnetic recording/reproducing apparatus (2025-11-18),
12. 12468220 - Mask blank substrate, substrate with multilayer reflective film, reflective mask blank, reflective mask, and method of manufacturing semiconductor device (2025-11-11),
13. 12468217 - Mask blank, method of manufacturing transfer mask, and method of manufacturing semiconductor device (2025-11-11),
14. 12465196 - Elevator attachment, endoscope, method of attaching elevator attachment and method of removing elevator attachment (2025-11-11),
15. 12462010 - Locking function for a mobile device (2025-11-04),
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 - Jan 20 2026

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2,535 Patents

#45 in Tokyo

#95 in Japan

#372 in the World

...
Tokyo, Japan

Hoya Corporation

Forward Citations = 21,068

1,307 inventors:

goldMedal Osamu Nozawa (107 out of 107 patents)

silverMedal Tsutomu Shoki (76 out of 76 patents)

bronzeMedal Xuelu Zou (73 out of 73 patents)

4.  Hiroshi Nomura (69 out of 302 patents)

5.  Hiroaki Shishido (64 out of 64 patents)

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