Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449012 | Scanning type image pick-up apparatus and a scanning type laser beam receive apparatus | Keizo Fujibayashi, Naoki Hosaka, Tetsuo Sado | 2002-09-10 |
| 6427065 | Power transmission system, IC card and information communication system using IC card | Takashi Suga, Ryouzou Yoshino, Kenji Nagai | 2002-07-30 |
| 6424201 | Diode element circuit and switch circuit using the same | Keiichi Yamamoto, Akio Oosaki | 2002-07-23 |
| 6321067 | Power transmission system IC card and information communication system using IC card | Takashi Suga, Ryouzou Yoshino, Kenji Nagai | 2001-11-20 |
| 6275023 | Semiconductor device tester and method for testing semiconductor device | Akio Oosaki | 2001-08-14 |
| 6194993 | Reader and/or writer apparatus, power feeding system, and communication system | Takashi Suga, Kouichi Uesaka, Ryouzou Yoshino, Keisuke Igarashi | 2001-02-27 |
| 6176433 | Reader/writer having coil arrangements to restrain electromagnetic field intensity at a distance | Kouichi Uesaka, Takashi Suga, Masami Makuuchi, Ryozo Yoshino | 2001-01-23 |
| 6164532 | Power transmission system, power transmission/communication system and reader and/or writer | Takashi Suga, Kouichi Uesaka, Masami Makuuchi, Ryozo Yoshino | 2000-12-26 |
| 5949823 | Data communication system and radio IC card system | Takashi Suga, Ryouzou Yoshino, Kenji Nagai | 1999-09-07 |
| 5541553 | Amplifier with a function for switching on and off the output signal | Norio Chujo, Akio Osaki | 1996-07-30 |
| 5438259 | Digital circuitry apparatus | Ritsuro Orihashi, Kosuke Kendo | 1995-08-01 |
| 5406198 | Digital circuitry apparatus | Ritsuro Orihashi, Kosuke Kendo | 1995-04-11 |
| 5153883 | Distributed timing signal generator | Takashi Suga | 1992-10-06 |
| 5078776 | Air bed conveying system | Masuhide Kajii | 1992-01-07 |
| 4973129 | Optical fiber element | Takashi Fukuzawa, Takashi Kishimoto, Yoichi Furuse, Sadao Kuzuwa | 1990-11-27 |
| 4855970 | Time interval measurement apparatus | Ritsuro Orihashi | 1989-08-08 |
| 4788684 | Memory test apparatus | Ikuo Kawaguchi | 1988-11-29 |
| 4651334 | Variable-ratio frequency divider | — | 1987-03-17 |