Issued Patents All Time
Showing 51–75 of 93 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5269518 | Grip-weighted putter | Masanobu Minami, Yoshio Tanabe, Yuuzi Mori | 1993-12-14 |
| 5259097 | Stretching machine | Kintaro Aihara, Tadashi Honda, Hideyo Rohyama, Kazuhiko Kurihara, Hiroshi Yazawa +1 more | 1993-11-09 |
| 5217113 | Golf bag with transparent panel | — | 1993-06-08 |
| 5016883 | Golf club heads and fabrication process thereof | — | 1991-05-21 |
| 4979745 | Electric apparatus for use when practicing a golf swing | — | 1990-12-25 |
| 4913435 | Golf club and a set of golf clubs | — | 1990-04-03 |
| 4890840 | Wood-type golf club head for number one golf club | — | 1990-01-02 |
| 4871174 | Golf club | — | 1989-10-03 |
| 4854583 | Construction of portion connecting golf club-head and golf club shaft | — | 1989-08-08 |
| 4838555 | Head of wood type golf club | — | 1989-06-13 |
| 4836550 | Club head for an iron-type golf club | — | 1989-06-06 |
| 4830377 | Golf club | — | 1989-05-16 |
| 4824110 | Golf club head | — | 1989-04-25 |
| 4819939 | Grip for a golf club shaft | — | 1989-04-11 |
| D300547 | Golf club head | — | 1989-04-04 |
| 4811950 | Golf club head | — | 1989-03-14 |
| 4811949 | Construction of a club-head for a golf club | — | 1989-03-14 |
| 4809982 | Golf club head | — | 1989-03-07 |
| 4798384 | Club-head | — | 1989-01-17 |
| 4787638 | Golf ball | — | 1988-11-29 |
| 4754971 | Golf club set | — | 1988-07-05 |
| 4754969 | Set of golf clubs | — | 1988-07-05 |
| 4754970 | Golf club set | — | 1988-07-05 |
| 4754974 | Golf club head | — | 1988-07-05 |
| 4732389 | Golf club head | — | 1988-03-22 |