Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11743053 | Electronic signature system and tamper-resistant device | — | 2023-08-29 |
| 10656115 | Controller and abnormality detecting method of air-fuel-ratio sensor | Masatoshi Watanabe, Shigeto Umeyama, Satoshi Noguchi, Motoki Komiya, Hiroto Miura | 2020-05-19 |
| 10316780 | Controller and abnormality detecting method of air-fuel-ratio sensor | Masatoshi Watanabe, Shigeto Umeyama, Motoki Komiya, Chiharu Morisaki, Hiroto Miura | 2019-06-11 |
| 10107850 | Abnormality detecting circuit and abnormality detecting method | Masayoshi Kume | 2018-10-23 |
| 8250361 | Server certificate issuing system and person authentication method | Ichiro Chujo | 2012-08-21 |
| 8234490 | Server certificate issuing system | Ichiro Chujo | 2012-07-31 |
| 8040649 | Overcurrent protection apparatus and electronic apparatus | Kazuhiro Komatsu | 2011-10-18 |
| 7854832 | Signal processing device and control unit | Kazuhiro Komatsu, Kouji Oonishi | 2010-12-21 |
| 7673331 | Server certificate issuing system | Ichiro Chujo | 2010-03-02 |
| 7550878 | Circuit for preventing corrosion of contact | Kazuhiro Komatsu, Masahiko Fujimoto, Kouji Oonishi, Junichi Sawada | 2009-06-23 |
| 7410563 | Method and apparatus for preventing corrosion of contact | Kazuhiro Komatsu, Masahiko Fujimoto, Kouji Oonishi, Junichi Sawada | 2008-08-12 |
| 7362011 | Apparatus for preventing corrosion of contact | Kazuhiro Komatsu, Masahiko Fujimoto, Kouji Oonishi, Junichi Sawada | 2008-04-22 |