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Adamant Namiki Precision Jewel Co., Ltd.

USPTO Granted Patents = 23

EPO Patents = 12

Trademarks = 3

Forward Citations = 5

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54 inventors (with patents filed for the assignee):

Koji Koyama (5 out of 7 patents)

Seongwoo Kim (5 out of 7 patents)

Hideo Aida (4 out of 8 patents)

4. Kenjiro Ikejiri (4 out of 4 patents)

5. Tomohide Aoyagi (3 out of 8 patents)

6. Yasuyuki Kobayashi (3 out of 6 patents)

7. Hiroshi Yamazaki (3 out of 10 patents)

8. Takafumi Asada (3 out of 9 patents)

9. Shinichi Takeda (2 out of 11 patents)

10. Yusuke Akiyama (2 out of 2 patents)

11. Tadahisa Iikubo (2 out of 3 patents)

12. Eri Fukushima (2 out of 9 patents)

13. Takuya Tateyama (2 out of 2 patents)

14. Takehiro Hayashi (1 out of 30 patents)

15. Hikaru Muto (1 out of 2 patents)

23 patents: Sort by Forward Citations

1. 11598922 - Optical receptacle and optical transceiver (2023-03-07),

2. 11564452 - Winding device (2023-01-31),

3. 11522430 - Linear vibration actuator (2022-12-06),

4. 11505878 - Diamond crystal substrate, method for producing diamond crystal substrate, and method for homo-epitaxially growing diamond crystal (2022-11-22),

5. 11390568 - Ceramic composite and production method for ceramic composite (2022-07-19),

6. 11357605 - Method for manufacturing ceramic sintered body (2022-06-14),

7. 11340397 - Mode controller (2022-05-24),

8. 10978935 - Switch power generating mechanism and switch power generating method (2021-04-13),

9. 10927823 - Power generation mechanism and method for generating power (2021-02-23),

10. 10797563 - Power generating device (2020-10-06),

11. 10711854 - Clutch device and motor unit using said clutch device (2020-07-14),

12. 10619267 - Diamond substrate (2020-04-14),

13. D870044 - Brushless motor (2019-12-17),

14. 10480096 - Diamond substrate (2019-11-19),

15. 10475580 - Oxide dielectric and method for manufacturing same, and solid state electronic device and method for manufacturing same (2019-11-12),

ADAMANT NAMIKI PRECISION JEWEL CO., LTD. is a leading manufacturer and supplier of precision balls and rollers. With over 80 years of experience, we specialize in producing high-quality precision products that are used in various industries including automotive, aerospace, medical, and electronic. Our commitment to technological innovation, strict quality control, and customer satisfaction has made us a trusted partner for global clients. Visit our website to learn more about our extensive range of precision balls and rollers.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

23 Patents

#1,091 in Tokyo

#2,646 in Japan

#26,841 in the World

Adamant Namiki Precision Jewel Co., Ltd.

Forward Citations = 5

54 inventors:

Koji Koyama (5 out of 7 patents)

Seongwoo Kim (5 out of 7 patents)

Hideo Aida (4 out of 8 patents)

4. Kenjiro Ikejiri (4 out of 4 patents)

5. Tomohide Aoyagi (3 out of 8 patents)

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