Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5773969 | DC-DC converter circuit and inductive load drive device using DC-DC converter circuit | Tetsuya Nakayama, Masao Hagiwara, Kenichiro Maeda, Daisuke Yoshida | 1998-06-30 |
| 5283680 | Optical connector assembly | Minoru Okugawa, Yasuyoshi Suzuki | 1994-02-01 |
| 5276367 | Offset drift reducing device for use in a differential amplification circuit | Kanji Shibatani, Masao Hagiwara | 1994-01-04 |
| 5243628 | Encoding method and code processing circuitry | Masao Hagiware | 1993-09-07 |
| 5229656 | Optical comparator circuit | Minoru Okugawa, Yasuyoshi Suzuki | 1993-07-20 |
| 5204865 | Data extracting circuit for serial control apparatus | Masao Hagiwara, Makoto Takebe, Yukinori Katayama | 1993-04-20 |
| 5170338 | Apparatus for carrying out serial control and method of controlling said apparatus | Masao Hagiwara, Yukinori Katayama | 1992-12-08 |
| 5163056 | Apparatus for carrying out serial control | Masao Hagiwara, Tatsuo Mimura | 1992-11-10 |
| 5163109 | Optical connector assembly | Minoru Okugawa, Yasuyoshi Suzuki | 1992-11-10 |
| 5095417 | Apparatus for carrying out serial control | Masao Hagiwara, Makoto Takebe | 1992-03-10 |
| 4423785 | Load control device for a working tool of a construction vehicle | Keishiro Kurihara, Tetsuya Nakayama | 1984-01-03 |