Issued Patents All Time
Showing 101–112 of 112 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5415797 | Degreasing solution and degreasing method | Shoji Shiraishi | 1995-05-16 |
| 5308413 | Process for phosphating metal surface to make thereon a zinc phosphate coating film | Tamotsu Sobata, Teturo Kishimoto | 1994-05-03 |
| 5244512 | Method for treating metal surface with zinc phosphate | Isao Kawasaki, Asao Mochizuki, Haruo Kojima | 1993-09-14 |
| 5163037 | Disc cartridge and recording/reproducing apparatus discriminating means | Kiyoshi Ohmori, Kenji Takahashi | 1992-11-10 |
| 5107575 | Heat exchanger and method of manufacturing the same | Toshio Isobe | 1992-04-28 |
| 4881621 | Spiral spring power source for toy | — | 1989-11-21 |
| 4777356 | Reader for optical type record card | Kiyoshi Toyota | 1988-10-11 |
| 4642892 | T-shaped razor | — | 1987-02-17 |
| 4469197 | Drive mechanism for toy running vehicles | — | 1984-09-04 |
| 4419147 | Phosphating process of metal surface | Ryoichi Murakami, Hideo Shimizu, Takashi Yoshii, Hiroto Yonekura | 1983-12-06 |
| 4292096 | Phosphating process of metal surface | Ryoichi Murakami, Hideo Shimizu, Takashi Yoshii, Hiroto Yonekura | 1981-09-29 |
| 4181539 | Process of phosphating an iron substrate in a closed system using aromatic nitro compound accelerators | Ryoichi Murakami, Yukio Anegawa, Keizi Masada | 1980-01-01 |