Trademarks = 1

Forward Citations = 94

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11 inventors (with patents filed for the assignee):

Makoto Watari (5 out of 6 patents)

Katsumi Shimohira (4 out of 5 patents)

Shuichi Nagashima (2 out of 2 patents)

4. Masatake Kawaguchi (2 out of 2 patents)

5. Koji Yoshida (1 out of 230 patents)

6. Toshiaki Sato (1 out of 15 patents)

7. Michihiko Ayada (1 out of 10 patents)

8. Akira Katsuyama (1 out of 36 patents)

9. Yuta Okutsu (1 out of 1 patent)

10. Atsushi Yagita (1 out of 1 patent)

11. Tiejun Miao (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 8007381 - Bat used for baseball or softball (2011-08-30),

2. 7993223 - Bat for baseball or softball (2011-08-09),

3. 7985149 - Bat for baseball or softball (2011-07-26),

4. 7980970 - Bat for baseball or softball (2011-07-19),

5. 7578750 - Golf shaft, golf club, and production method for golf shaft (2009-08-25),

6. 6213888 - Golf club shaft (2001-04-10),

7. 6135896 - Putter club (2000-10-24),

Nippon Shaft is a leading manufacturer of high-quality golf shafts with a long history dating back to 1959. Known for their precision engineering and innovative designs, Nippon Shaft products are trusted by professional golfers worldwide. The company's mission is to provide golfers with the highest performance and consistency in their game through their premium shafts.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

7 Patents

#174 in Kanagawa

#5,301 in Japan

Kanagawa, Japan

Nippon Shaft Co., Ltd.