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Okuma Machinery Works Ltd.

USPTO Granted Patents = 28

Trademarks = 2

Forward Citations = 246

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42 inventors (with patents filed for the assignee):

Toshihiro Kimura (3 out of 3 patents)

Yasukazu Hayashi (2 out of 29 patents)

Hiroshi Narushima (2 out of 3 patents)

4. Takayoshi Kojima (2 out of 2 patents)

5. Katsuyoshi Kitagawa (2 out of 4 patents)

6. Nokihisa Adachi (2 out of 2 patents)

7. Yasumasa Narikiyo (2 out of 2 patents)

8. Mitsuhiro Kawabe (2 out of 2 patents)

9. Ryuji Toida (2 out of 2 patents)

10. Toshiaki Watanabe (2 out of 2 patents)

11. Masayuki Nashiki (1 out of 52 patents)

12. Yuji Sakai (1 out of 2 patents)

13. Takashi Nishimoto (1 out of 3 patents)

14. Fumitoshi Terasaki (1 out of 4 patents)

15. Yukio Taki (1 out of 1 patent)

28 patents: Sort by Forward Citations

1. 5142210 - Abnormal state detecting apparatus of a machine tool (1992-08-25),

2. 5121039 - Index control apparatus for tool rest of NC lathe (1992-06-09),

3. 5105135 - Feedback controller for NC controlled machine tools (1992-04-14),

4. 5104268 - Screw cutting machine (1992-04-14),

5. 5088244 - Machining method for member included screw-shaped portion (1992-02-18),

6. 5076744 - Screw cutting machine (1991-12-31),

7. 5025914 - Feed-screw support structure (1991-06-25),

8. 4901541 - Needle selector for knitting machine (1990-02-20),

9. 4534803 - Method of cleaning machined surface and chip removing tool (1985-08-13),

10. 4505020 - Tool replacing device (1985-03-19),

11. D265319 - Combined lathe and swarf cover therefor (1982-07-06),

12. 4296657 - Method and apparatus for positioning work on a numerically controlled (1981-10-27),

13. 4255682 - Multipolar resolver (1981-03-10),

14. 4214191 - System for automatic management of tool life (1980-07-22),

15. 4197490 - Numerical control system for a machine tool having a plurality of saddles (1980-04-08),

Okuma Machinery Works Ltd. is a global provider of CNC (Computer Numerical Control) machine tools and machining solutions. With over 100 years of experience in the industry, Okuma has established itself as a leader in precision machining technology. The company offers a wide range of products, including CNC lathes, machining centers, multitasking machines, and grinding machines. Okuma Machinery Works Ltd. is committed to delivering high-quality products and exceptional customer service to industries such as aerospace, automotive, medical, and more.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

28 Patents

#34 in Nagoya

#2,357 in Japan

#22,583 in the World

Okuma Machinery Works Ltd.

Forward Citations = 246

42 inventors:

Toshihiro Kimura (3 out of 3 patents)

Yasukazu Hayashi (2 out of 29 patents)

Hiroshi Narushima (2 out of 3 patents)

4. Takayoshi Kojima (2 out of 2 patents)

5. Katsuyoshi Kitagawa (2 out of 4 patents)

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