Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8618970 | DA conversion device and electron beam exposure system using the same | Takamasa Sato, Atsushi Higashino | 2013-12-31 |
| 7557357 | D/A conversion device and method and charged particle beam exposure apparatus and method | Takamasa Satoh, Koichi Hidaka | 2009-07-07 |
| 6554194 | IC card and its manufacturing method | Koji Sasaki, Naoto Saito, Hideo Miura, Hiroyuki Ohta, Kunio Matsumoto | 2003-04-29 |
| 6176433 | Reader/writer having coil arrangements to restrain electromagnetic field intensity at a distance | Kouichi Uesaka, Yoshihiko Hayashi, Takashi Suga, Masami Makuuchi | 2001-01-23 |
| 6164532 | Power transmission system, power transmission/communication system and reader and/or writer | Takashi Suga, Yoshihiko Hayashi, Kouichi Uesaka, Masami Makuuchi | 2000-12-26 |
| 5514983 | CMOS full duplex transmission-reception circuit | — | 1996-05-07 |
| 5499269 | Transmission-reception circuit | — | 1996-03-12 |
| 5052022 | Repeater and PLL circuit | Shigeo Nishita, Masato Hirai | 1991-09-24 |
| 4783791 | Multiple reproducing repeater station system | — | 1988-11-08 |
| 4697047 | Trunk coupling unit | Masato Hirai, Masami Kurata | 1987-09-29 |
| 4675884 | Decoding circuit | Kazunori Nakamura, Mitsuhiro Yamaga, Norihiko Sugimoto | 1987-06-23 |