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Union Tool Company

USPTO Granted Patents = 13

EPO Patents = 19

Trademarks = 1

Forward Citations = 43

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24 inventors (with patents filed for the assignee):

Shoichi Takahashi (4 out of 10 patents)

Ichiro Katayama (4 out of 4 patents)

Hidehito Watanabe (3 out of 3 patents)

4. Hideki Osaki (2 out of 2 patents)

5. Shuntaro Suzuki (2 out of 2 patents)

6. Ryo Shinozaki (2 out of 2 patents)

7. Hideo Wakui (2 out of 2 patents)

8. Yoshiharu Shinbo (2 out of 2 patents)

9. Yuji Watanabe (1 out of 72 patents)

10. Sonoko Ishimaru (1 out of 6 patents)

11. Mariko Matsui (1 out of 2 patents)

12. Nozomu Sato (1 out of 3 patents)

13. Madoka Nitta (1 out of 1 patent)

14. Taishi Matsui (1 out of 1 patent)

15. Naoki Jinbo (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 11780018 - Rotary cutting tool (2023-10-10),

2. 10183346 - Rotary milling tool (2019-01-22),

3. 9868160 - Hard-coated cutting tool (2018-01-16),

4. 9833162 - Atrial fibrillation detection system (2017-12-05),

5. 9545205 - Dozing prevention method, and dozing prevention device (2017-01-17),

6. 9061397 - Diamond film for cutting-tools (2015-06-23),

7. 8961078 - Rotary cutting tool (2015-02-24),

8. 8186914 - Rotary cutting tool (2012-05-29),

9. 7354229 - Drill (2008-04-08),

10. 6613999 - Method of joining a sintered hard alloy member to a stainless steel member and method of making a cutting tool therefrom (2003-09-02),

11. 6331133 - Automatic drill bit re-pointing apparatus and method (2001-12-18),

12. 6260701 - Drill bit case with re-configurable shank retainer and stand base (2001-07-17),

13. 4837432 - Optical measuring apparatus which employs two synchronously rotating (1989-06-06),

Union Tool Company is a leading manufacturer of high-quality cutting tools and accessories for a variety of industries, including woodworking, metalworking, and packaging. With a strong commitment to innovation and customer satisfaction, Union Tool Company has been providing reliable solutions for over 70 years. Their extensive product line includes saw blades, drill bits, router bits, and more, all designed to meet the demands of modern manufacturing processes.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

13 Patents

#1,457 in Tokyo

#3,666 in Japan

#43,688 in the World

Union Tool Company

Forward Citations = 43

24 inventors:

Shoichi Takahashi (4 out of 10 patents)

Ichiro Katayama (4 out of 4 patents)

Hidehito Watanabe (3 out of 3 patents)

4. Hideki Osaki (2 out of 2 patents)

5. Shuntaro Suzuki (2 out of 2 patents)

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