Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12335384 | Encryption key generating device, encryption key generating program, and encryption key generating/erasing method | Masahiro TAKEOKA, Masahide Sasaki | 2025-06-17 |
| 11502831 | Transmitting device, receiving device, quantum key distribution method, and quantum key distribution program for quantum key distribution system | Ken-ichiro Yoshino, Masahide Sasaki, Akihisa Tomita | 2022-11-15 |
| 10193874 | Communication system | Masahide Sasaki | 2019-01-29 |
| 8509446 | Time-bin polarization format exchange technique for entangled optical source | Morio Toyoshima, Masahide Sasaki, Akihisa Tomita, Yoshihiro Nambu, Ken-ichiro Yoshino | 2013-08-13 |
| 8374505 | Apparatus and method for quantum cryptography communication | Morio Toyoshima, Hiroo Kunimori | 2013-02-12 |
| 8048731 | Method for reducing low frequency noise of transistor | Masahide Sasaki, Hiroshi Matsuo, Hirohisa Nagata | 2011-11-01 |
| 7411622 | Video signal processor | Takahiro Mitsui, Katsuji Uro | 2008-08-12 |
| 7176439 | Method for manufacturing photodetector for weak light | Masahide Sasaki, Makoto Akiba | 2007-02-13 |
| 7135669 | Low-level light detector and low-level light imaging apparatus | Makoto Akiba | 2006-11-14 |
| 7115868 | Photodetector for weak light with UV transparent substrates | Masahide Sasaki, Makoto Akiba | 2006-10-03 |
| 7078667 | Photo detector for weak light | Masahide Sasaki, Makoto Akiba | 2006-07-18 |
| 7067790 | Photodetector for weak light having charge reset means | Masahide Sasaki, Makoto Akiba | 2006-06-27 |
| 6947828 | Knock control system for internal combustion engine | Yasuaki Asaki, Jiro Takagi, Hirosuke Niwa | 2005-09-20 |
| 6854449 | Control apparatus for internal combustion engine | Junya Iino, Yasuaki Asaki, Jiro Takagi, Katsumi Noguchi | 2005-02-15 |
| 6827062 | Ignition timing control apparatus for internal combustion engine | Takaaki Fukusako, Jiro Takagi | 2004-12-07 |
| 6773936 | Method of reducing low-frequency noise for semiconductor devices and circuits | Makoto Akiba | 2004-08-10 |
| 6691021 | Failure determination system, failure determination method and engine control unit for variable-cylinder internal combustion engine | Jiro Takagi, Yasuaki Asaki | 2004-02-10 |
| 6636881 | Binary data counter, area information extractor and huffman converter | — | 2003-10-21 |
| 6499470 | Control system for internal combustion engine | Jiro Takagi, Yasuaki Asaki | 2002-12-31 |
| 6181494 | Recording format for automatic adjustment, recording device therefor and automatic adjustment device | — | 2001-01-30 |
| 5689254 | Decoding circuit for runlength codes | Yoshiyuki Goi, Hideki Ishii | 1997-11-18 |
| 5400154 | Hybrid interpolation and non-interpolation method and apparatus for image enlarging and contracting | Hisashi Takayama, Takayuki Minemaru, Satoshi Takayama | 1995-03-21 |
| 5267099 | Digital signal recording/reproducing system | Sigekazu Togashi, Yasunori Kawakami, Toshihiro Uehara, Hotaka Minaguchi | 1993-11-30 |
| 5195802 | Seat cushion latching device for automotive seat | Hatsuo Hayakawa, Mikio Honma, Hidemasa Hirakui, Hideki Irie | 1993-03-23 |
| 5158338 | Automotive seat assembly | Hatsuo Hayakawa, Mikio Honma, Hidemasa Hirakui, Hideki Irie | 1992-10-27 |