Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6898578 | Recording apparatus for recording digital information | Manabu Sasamoto, Takaharu Noguchi, Makoto Aikawa | 2005-05-24 |
| 6683956 | Encrypting conversion apparatus, decrypting conversion apparatus, cryptographic communication system, and electronic toll collection apparatus | Makoto Aikawa, Kazuo Takaragi, Yoshimichi Kudo | 2004-01-27 |
| 6606385 | Data encrypting/decrypting conversion methods and apparatuses and data communication system adopting the same | Makoto Aikawa, Kazuo Takaragi, Hiroyuki Koreeda, Manabu Sasamoto, Hiroo Okamoto +2 more | 2003-08-12 |
| 5974218 | Method and apparatus for making a digest picture | Akio Nagasaka, Takafumi Miyatake, Yoshikazu Amano | 1999-10-26 |
| 5534934 | Television receiver capable of enlarging and compressing image | Kenji Katsumata, Toshinori Murata, Haruki Takata, Shinobu Torikoshi, Takanori Eda +1 more | 1996-07-09 |
| 5353065 | Apparatus for receiving wide/standard picture plane television signal | Kenji Katsumata, Masato Sugiyama, Isao Nakagawa | 1994-10-04 |
| 5343238 | Wide-screen television receiver with aspect ratio conversion function and method of displaying a range to be magnified and displayed | Haruki Takata, Kenji Katsumata, Mituo Konno, Kouichi Ishibashi, Sunao Suzuki | 1994-08-30 |
| 5276515 | Compatible wide aspect ratio receiver with spatial filtering for variable zoom | Kenji Katsumata, Haruki Takata, Mituo Konno, Kouichi Ishibashi, Kazuhiro Kaizaki +2 more | 1994-01-04 |
| 5249037 | Image signal correction circuit and image signal processor using the circuit | Masato Sugiyama, Isao Nakagawa, Toshinori Murata, Ikuya Arai, Kazuhiro Kaizaki +4 more | 1993-09-28 |
| 5243421 | Signal processor for a wide televison receiver | Tatsuo Nagata, Kenji Katsumata, Shinobu Torikoshi, Mitsuo Konno | 1993-09-07 |
| 5218436 | Processing circuit for a plurality of different TV signals | Masato Sugiyama, Tohru Suzaki, Isao Nakagawa, Kenji Katsumata | 1993-06-08 |
| 5181110 | Video signal processing circuit capable of enlarging and displaying a picture | Kenji Katsumata, Masato Sugiyama, Takaaki Matono, Kazuo Ishikura, Sunao Suzuki +1 more | 1993-01-19 |
| 5132793 | Television receiver compatible with both standard system television signal and high definition television signal | Shinobu Torikoshi, Toshiyuki Sakamoto, Takumi Okamura, Noboru Kojima, Tetsuo Mitsuhashi +4 more | 1992-07-21 |
| 5029006 | Video signal processing circuit capable of enlarging and displaying a picture | Kenji Katsumata, Masato Sugiyama, Takaaki Matono, Kazuo Ishikura, Sunao Suzuki +1 more | 1991-07-02 |
| 4953032 | Motion signal generating circuit for use in a television receiver | Tohru Suzaki, Masato Sugiyama, Takaaki Matono, Kazuhiro Kaizaki | 1990-08-28 |
| 4853765 | Sequential scanning converter with frame comb filter and freeze frame feature | Kenji Katsumata, Masato Sugiyama, Takaaki Matono, Isao Nakagawa, Kazuo Ishikura +1 more | 1989-08-01 |
| 4821226 | Dual port video memory system having a bit-serial address input port | Todd J. Christopher | 1989-04-11 |
| 4802118 | Computer memory refresh circuit | Toyota Honda | 1989-01-31 |
| 4794454 | Movement detection circuit of a video signal used in a television receiver | Masato Sugiyama, Kenji Katsumata, Isao Nakagawa, Sunao Suzuki, Masahiko Achiha +1 more | 1988-12-27 |
| 4775888 | Motion detector for chrominance signal in TV receiver | Isao Nakagawa, Masahiko Achiha, Masato Sugiyama, Kenji Katsumata, Toshinori Murata +1 more | 1988-10-04 |
| 4748504 | Video memory control apparatus | Tetsuya Ikeda, Yukitoshi Tsuboi | 1988-05-31 |
| 4736252 | Motion detector for chrominance signal in TV receiver | Isao Nakagawa, Masahiko Achiha, Masato Sugiyama, Kenji Katsumata, Toshinori Murata +1 more | 1988-04-05 |
| 4733297 | Video signal processing circuit of motion adaptive type | Kenji Katsumata, Masato Sugiyama, Akihide Okuda, Isao Nakagawa, Sunao Suzuki | 1988-03-22 |
| 4733300 | Contour signal correction circuit for television receiver | Masato Sugiyama, Isao Nakagawa, Kenji Katsumata, Sunao Suzuki | 1988-03-22 |
| 4591845 | Character and graphic signal generating apparatus | Shigeru Komatsu | 1986-05-27 |