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For the Inventor, By the Inventor

Higashiosaka, Japan

Yamamoto Kogaku Co., Ltd.


USPTO Granted Patents = 120


Trademarks = 12

Forward Citations = 1,937

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66 inventors (with patents filed for the assignee):

goldMedal Tamenobu Yamamoto (21 out of 22 patents)

silverMedal Kazuto Yasuhara (12 out of 12 patents)

bronzeMedal Koichiro Oka (10 out of 10 patents)

4.  Shinichi Hadehara (10 out of 10 patents)

5.  Toru Tsubooka (9 out of 9 patents)

6.  Tomoyuki Yashiro (9 out of 9 patents)

7.  Kimio Matsumoto (7 out of 7 patents)

8.  Hirofumi Tominaga (7 out of 7 patents)

9.  Rintaro Inui (6 out of 7 patents)

10.  Kimiko Minamidani (6 out of 6 patents)

11.  Katsuya Takeshi (5 out of 6 patents)

12.  Yoshihisa Ishiba (5 out of 6 patents)

13.  Keiko Nishida (5 out of 5 patents)

14.  Hiroki Hashimoto (5 out of 5 patents)

15.  Naoya Aoyama (5 out of 5 patents)


Core Competencies:
Eyeglasses
Swimming Goggles
Sunglasses
Protective Goggles
Polarization Optical Article
Fog-Resistant Structure
Synthetic Resin Lens
Optical Structure for Eyes
Lens for Safety Glasses
Headgear
Mask Fitting Level Determination
Device for Assisting Rescue Operations

120 patents:

1. 11686640 - Mask adhesion determination device (2023-06-27),
2. 11640073 - Eyeglasses (2023-05-02),
3. 11471632 - Mask fitting level determination device (2022-10-18),
4. 11262602 - Holding tool for wearable device and face or head-mounted implement provided with holding tool (2022-03-01),
5. D827703 - Front frame for swimming goggles (2018-09-04),
6. 9507176 - Polarization optical article in which uneven coloring by polarization color has been improved (2016-11-29),
7. 9301578 - Belt length adjuster (2016-04-05),
8. D745082 - Swimming goggles (2015-12-08),
9. D745081 - Swimming goggles (2015-12-08),
10. 9146336 - Synthetic resin lens (2015-09-29),
11. 9015868 - Fog-resistant structure and protective device for eyes (2015-04-28),
12. 8959669 - Goggles (2015-02-24),
13. 8870373 - Single-lens type polarizing glasses (2014-10-28),
14. 8650667 - Swimming goggles (2014-02-18),
15. 8496328 - Process for producing optical article (2013-07-30),
Yamamoto Kogaku Co., Ltd. is a renowned company specializing in the design, development, and manufacturing of high-quality optical instruments and equipment. With a rich history dating back to 1945, Yamamoto Kogaku has gained a strong reputation for delivering innovative and reliable solutions to various industries. Their extensive product range includes precision lenses, microscopes, cameras, and scientific measuring instruments. Yamamoto Kogaku is committed to creating cutting-edge optical technologies that enhance the precision and performance of their customers' applications.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

120 Patents

#1 in Higashiosaka

#986 in Japan

#6,438 in the World

...
Higashiosaka, Japan

Yamamoto Kogaku Co., Ltd.

Forward Citations = 1,937

66 inventors:

goldMedal Tamenobu Yamamoto (21 out of 22 patents)

silverMedal Kazuto Yasuhara (12 out of 12 patents)

bronzeMedal Koichiro Oka (10 out of 10 patents)

4.  Shinichi Hadehara (10 out of 10 patents)

5.  Toru Tsubooka (9 out of 9 patents)

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