Issued Patents All Time
Showing 76–93 of 93 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728105 | Golf club head | — | 1988-03-01 |
| 4708347 | Club-head | — | 1987-11-24 |
| 4699383 | Club-head | — | 1987-10-13 |
| 4690408 | Club-head | — | 1987-09-01 |
| 4691258 | Temperature compensating mechanism for positioning of a magnetic head of a magnetic disk drive | Keishi Takahashi, Kimiya Yoneyama | 1987-09-01 |
| 4682504 | Device for measuring a stiffness of a golf-club shaft | — | 1987-07-28 |
| 4680552 | Apparatus for measuring impurities in super-pure water without exposure to surrounding atmosphere | Kozo Shirato, Kazuo Hiraizumi, Kazuyasu Kawashima, Shinya Okuyama, Minoru Tanaka +5 more | 1987-07-14 |
| 4652364 | Apparatus for adjusting the concentration of a solution | Kozo Shirato, Kazuo Hiraizumi, Kazuyasu Kawashima | 1987-03-24 |
| D284298 | Golf club grip | — | 1986-06-17 |
| D277221 | Golf club head | — | 1985-01-15 |
| 4489945 | All-metallic golf club head | — | 1984-12-25 |
| 4487378 | Coreless toilet paper roll and method for manufacture thereof | — | 1984-12-11 |
| D267965 | Iron club head | — | 1983-02-15 |
| D265494 | Golf club head | — | 1982-07-20 |
| D264488 | Golf club head | — | 1982-05-18 |
| D263980 | Golf club head | — | 1982-04-20 |
| D262303 | Golf club head | — | 1981-12-15 |
| D262304 | Golf club head | — | 1981-12-15 |