Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10469256 | Cryptographic communication system and cryptographic communication method | Shigemasa Shiota, Masayuki Hirokawa, Akira Yamazaki, Daisuke Oshida | 2019-11-05 |
| 9931953 | Non-contact power supply method and non-contact power supply system | Daisuke Oshida | 2018-04-03 |
| 9608818 | Cryptographic communication system and cryptographic communication method | Shigemasa Shiota, Masayuki Hirokawa, Akira Yamazaki, Daisuke Oshida | 2017-03-28 |
| 9363082 | Cryptographic communication system and cryptographic communication method | Shigemasa Shiota, Masayuki Hirokawa, Akira Yamazaki, Daisuke Oshida | 2016-06-07 |
| 9300470 | Semiconductor device and method of writing data to semiconductor device | Daisuke Oshida, Masayuki Hirokawa, Akira Yamazaki, Takashi Fujimori, Shigemasa Shiota | 2016-03-29 |
| 9245153 | Semiconductor device | Daisuke Oshida, Masayuki Hirokawa, Akira Yamazaki, Takashi Fujimori, Shigemasa Shiota | 2016-01-26 |
| 9026882 | Semiconductor device and method of writing data to semiconductor device | Daisuke Oshida, Masayuki Hirokawa, Akira Yamazaki, Takashi Fujimori, Shigemasa Shiota | 2015-05-05 |
| 8782432 | Semiconductor device | Daisuke Oshida, Masayuki Hirokawa, Akira Yamazaki, Takashi Fujimori, Shigemasa Shiota | 2014-07-15 |
| 5698837 | Method and system for identifying and communicating with a plurality of contactless IC cards | — | 1997-12-16 |
| 5585617 | Non-contact IC card communicating at multiple frequencies | Jun Ohbuchi, Tetsuro Washida | 1996-12-17 |
| 5225667 | IC card | Etsushi Takebayashi | 1993-07-06 |
| 5212373 | Non-contact IC card | Shuzo Fujioka, Toshiyuki Matsubara | 1993-05-18 |
| 5056089 | Memory device | Kenichi Takahira, Atsuo Yamaguchi, Takesi Inoue, Toshiyuki Matsubara, Shuzo Fujioka | 1991-10-08 |
| 5047924 | Microcomputer | Shuzo Fujioka, Toshiyuki Matsubara, Atsuo Yamaguchi, Kenichi Takahira, Takesi Inoue | 1991-09-10 |
| 5036460 | Microprocessor having miswriting preventing function | Kenichi Takahira, Atsuo Yamaguchi, Takesi Inoue, Toshiyuki Matsubara, Shuzo Fujioka | 1991-07-30 |
| 5019970 | IC card | Atsuo Yamaguchi, Kenichi Takahira, Takesi Inoue, Toshiyuki Matsubara, Shuzo Fujioka | 1991-05-28 |
| 5016212 | IC card having system ROM selection inhibit | Atsuo Yamaguchi, Takesi Inoue, Kenichi Takahira, Shuzo Fujioka, Toshiyuki Matsubara | 1991-05-14 |
| 4924465 | Memory with function test of error detection/correction device | Toshiyuki Matsubara, Shuzo Fujioka, Atsuo Yamaguchi, Kenichi Takahira, Takesi Inoue | 1990-05-08 |