Issued Patents All Time
Showing 126–131 of 131 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5162068 | Method for preventing oxidation of lead frame in bonding system | Masayuki Yamamoto | 1992-11-10 |
| 5148908 | Apparatus for conveying lead frame | Masahiro ISHIZUKA | 1992-09-22 |
| 5124207 | Magnetic iron oxide particles | Keisuke Iwasaki, Yasuyuki Tanaka, Hiroko Itamochi | 1992-06-23 |
| 5061570 | Magnetic recording medium comprising magnetic particles and a polyester resin having an iminosulfonyl group | Akihiro Nishimura, Keisuke Iwasaki, Yasuyuki Tanaka, Hiroko Itamochi | 1991-10-29 |
| 4938834 | Apparatus for preventing the oxidation of lead frames during bonding | Masayuki Yamamoto | 1990-07-03 |
| 4876681 | Packet switching equipment and a packet switching method for controlling packet switched networks | Masayoshi Hagiwara, Michio Suzuki, Ryoichi Sasaki, Minoru Sugano, Akira Horiki | 1989-10-24 |