For the Inventor, By the Inventor

Enter assignee name

Koyo Machine Industries Company Limited

USPTO Granted Patents = 43

EPO Patents = 14

Forward Citations = 159

Loading Chart...

Loading Chart...

80 inventors (with patents filed for the assignee):

Takeshi Koyama (5 out of 14 patents)

Hirohisa Yamada (4 out of 4 patents)

Shizuki Sasakura (3 out of 3 patents)

4. Mitsuharu Ozaki (3 out of 8 patents)

5. Haruyuki Hirayama (3 out of 3 patents)

6. Tomohiro Okamoto (3 out of 3 patents)

7. Toshihiko Daido (3 out of 16 patents)

8. Hiroshi Kunimatsu (3 out of 3 patents)

9. Ryoichi Tokioka (2 out of 12 patents)

10. Yasutaka Fukumoto (2 out of 8 patents)

11. Daiki Yano (2 out of 2 patents)

12. Kazuhide Honda (2 out of 2 patents)

13. Osamu Honda (2 out of 4 patents)

14. Masanori Kobayashi (2 out of 68 patents)

15. Satoshi Kakutani (2 out of 4 patents)

Core Competencies:

Universal Joint

Surface Grinding

Telescopic Shaft

Centerless Grinding

Bearing Cup

Sewing Machine Technology

Inclination Angle Adjusting Device

Spline Telescopic Shaft

Roller Bearing

Grinding Wheel Truing

Workpiece Conveyer

Speed Control Apparatus

43 patents: Sort by Forward Citations

1. 11732758 - Assembly method and assembly apparatus for cross shaft universal joint (2023-08-22),

2. 11517989 - Cam device, work supply device and separating device (2022-12-06),

3. 10751852 - Surface grinding method and surface grinding device (2020-08-25),

4. 10167902 - Manufacturing method of rotating element, connecting structure between rotating element and rotating shaft, and steering apparatus (2019-01-01),

5. 10166645 - Centerless grinding machine (2019-01-01),

6. 9707991 - Telescopic shaft and steering system (2017-07-18),

7. 9669511 - Surface grinding method for workpiece (2017-06-06),

8. 9630645 - Telescopic shaft and steering system (2017-04-25),

9. 9539685 - Workpiece conveyer apparatus of machine tool (2017-01-10),

10. 9452444 - Method of manufacturing spline telescopic shaft (2016-09-27),

11. 9404530 - Bearing cup and cross shaft joint (2016-08-02),

12. 8753215 - Spline telescopic shaft and method for manufacturing the same and vehicle steering apparatus (2014-06-17),

13. 8500564 - Shaft-and-yoke coupling structure and vehicle steering system (2013-08-06),

14. 8419555 - Spline telescopic shaft, method for manufacturing spline telescopic shaft, and vehicle steering apparatus (2013-04-16),

15. 8403732 - Inclination angle adjusting device and workpiece attaching device (2013-03-26),

KOYO MACHINE INDUSTRIES CO., LTD. is a world-renowned precision machinery manufacturer, primarily engaged in the development and production of grinding machines. With over 70 years of experience, they are recognized for their innovative technology and reliable manufacturing solutions. Their state-of-the-art machines cater to various industries including automotive, aerospace, and electronics. Visit their website to explore their wide range of products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

43 Patents

#177 in Osaka

#1,844 in Japan

#15,578 in the World

Koyo Machine Industries Company Limited

Forward Citations = 159

80 inventors:

Takeshi Koyama (5 out of 14 patents)

Hirohisa Yamada (4 out of 4 patents)

Shizuki Sasakura (3 out of 3 patents)

4. Mitsuharu Ozaki (3 out of 8 patents)

5. Haruyuki Hirayama (3 out of 3 patents)

Please report any incorrect information to support@idiyas.com

Loading…