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Okamoto Corporation

USPTO Granted Patents = 37

CIPO Patents = 1

EPO Patents = 16

Trademarks = 4

Forward Citations = 231

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53 inventors (with patents filed for the assignee):

Takao Fukui (7 out of 8 patents)

Hideo Hirano (5 out of 6 patents)

Masatoshi Kaneda (4 out of 4 patents)

4. Kousuke Noguchi (4 out of 4 patents)

5. Tianfu Zhao (4 out of 4 patents)

6. Masao Nakagaki (4 out of 4 patents)

7. Toshio Ando (3 out of 3 patents)

8. Takahiro Araki (3 out of 3 patents)

9. Chika Watatani (3 out of 3 patents)

10. Kiyokazu Shuku (3 out of 3 patents)

11. Susumu Hara (3 out of 3 patents)

12. Masaaki Makikawa (2 out of 4 patents)

13. Hiromi Kashihara (2 out of 2 patents)

14. Naomi Hamazaki (2 out of 2 patents)

15. Atsushi Tomohisa (2 out of 2 patents)

37 patents: Sort by Forward Citations

1. D1070330 - Legwear (2025-04-14),

2. 12063862 - Piezoelectric fiber composite having separate joint portions and piezoelectric clothing containing the same (2024-08-13),

3. D919954 - Sock (2021-05-25),

4. D903294 - Sock with nonslip part (2020-12-01),

5. D892487 - Sock (2020-08-11),

6. 10513807 - Knitting machine capable of changing pile length and manufacturing method of knitted fabric having different pile lengths (2019-12-24),

7. 10487426 - Tubular fabric, method of knitting tubular fabric, and sock (2019-11-26),

8. D855305 - Sock with nonslip part (2019-08-06),

9. 10219932 - Protection garment (2019-03-05),

10. D838468 - Sock with nonslip parts (2019-01-22),

11. 10094054 - Stitch-size controlled knit product (2018-10-09),

12. 10060055 - Stitch-size controlled knit product (2018-08-28),

13. 10011927 - Stitch-size controllable knitting machine, and manufacturing method of knitted fabric (2018-07-03),

14. D800440 - Sock (2017-10-24),

15. 9636261 - Leg garment (2017-05-02),

Okamoto Corporation is a leading manufacturer of precision grinding and polishing machines in Japan. With over 80 years of experience, the company provides innovative solutions to various industries such as automotive, semiconductor, and electronics. Their wide range of products includes surface grinding machines, cylindrical grinding machines, and internal grinding machines. Okamoto Corporation prides itself on delivering high-quality machines, advanced technology, and exceptional customer service.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

37 Patents

#5 in Nara

#2,013 in Japan

#17,724 in the World

Okamoto Corporation

Forward Citations = 231

53 inventors:

Takao Fukui (7 out of 8 patents)

Hideo Hirano (5 out of 6 patents)

Masatoshi Kaneda (4 out of 4 patents)

4. Kousuke Noguchi (4 out of 4 patents)

5. Tianfu Zhao (4 out of 4 patents)

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