Issued Patents All Time
Showing 51–75 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351469 | Sound/data sharing communications system | Keiichi Otani, Koji Yano, Atsuo Serikawa, Takaya Yamamoto | 2002-02-26 |
| 6304890 | Exponential calculation device and decoding device | Shuji Miyasaka, Takeshi Fujita, Masahiro Sueyoshi, Akihisa Kawamura, Takashi Katayama +2 more | 2001-10-16 |
| 6297754 | Decoding device | Shuji Miyasaka, Takeshi Fujita, Masahiro Sueyoshi, Akihisa Kawamura, Takashi Katayama +2 more | 2001-10-02 |
| 6295319 | Decoding device | Masahiro Sueyoshi, Shuji Miyasaka, Takeshi Fujita, Takashi Katayama, Kazutaka Abe +5 more | 2001-09-25 |
| 6233562 | Audio decoding device and signal processing device for decoding multi-channel signals with reduced memory requirements | Masahiro Sueyoshi, Shuji Miyasaka, Tukuru Ishito, Takeshi Fujita, Takashi Katayama +3 more | 2001-05-15 |
| 6145917 | Door operating apparatus for vehicle | Yuichi ISHII | 2000-11-14 |
| 6118821 | Compressed code decoding device and audio decoding device | Takashi Katayama, Masahiro Sueyoshi, Shuji Miyasaka, Takeshi Fujita, Akihisa Kawamura +3 more | 2000-09-12 |
| 5960005 | Method and device for two-way communication network | Umihiko Moteki, Yutaka Suzuki, Atsuo Serikawa, Yuji Maeda, Yoshihide Morimoto +1 more | 1999-09-28 |
| 5952934 | Terminal ID automatic assigning system | Eriko Gokita | 1999-09-14 |
| 5796845 | Sound field and sound image control apparatus and method | Mitsuhiko Serikawa, Ryou Tagami, Akihisa Kawamura, Mikio Oda, Hiroko Numazu | 1998-08-18 |
| 5742688 | Sound field controller and control method | Michiko Ogawa, Akihisa Kawamura, Toshihiko Date, Tadashi Tamura, Yasutoshi Nakama | 1998-04-21 |
| 5684881 | Sound field and sound image control apparatus and method | Mitsuhiko Serikawa, Ryou Tagami, Akihisa Kawamura, Mikio Oda, Hiroko Numazu | 1997-11-04 |
| 5617478 | Sound reproduction system and a sound reproduction method | Ryou Tagami, Takeshi Norimatsu, Mikio Oda, Mitsuhiko Serikawa, Akihisa Kawamura +1 more | 1997-04-01 |
| 5572591 | Sound field controller | Hiroko Numazu, Akihisa Kawamura, Ryou Tagami, Mikio Oda | 1996-11-05 |
| 5442712 | Sound amplifying apparatus with automatic howl-suppressing function | Akihisa Kawamura, Mitsuhiko Serikawa, Hiroko Numazu | 1995-08-15 |
| 5381482 | Sound field controller | Mitsuhiko Serikawa, Akihisa Kawamura, Hiroko Numazu, Takeshi Norimatsu, Ryo Tagami +1 more | 1995-01-10 |
| 5375188 | Music/voice discriminating apparatus | Mitsuhiko Serikawa, Akihisa Kawamura, Hiroko Numazu | 1994-12-20 |
| 5233661 | Sound field variable apparatus | Akihisa Kawamura, Mitsuhiko Serikawa, Hiroko Numazu, Katsuaki Sato | 1993-08-03 |
| 5165751 | Air spoiler device | Nobuo Ito | 1992-11-24 |
| 5164840 | Apparatus for supplying control codes to sound field reproduction apparatus | Akihisa Kawamura, Mitsuhiko Serikawa, Ryo Tagami, Katsuaki Sato, Hiroko Yoshida +1 more | 1992-11-17 |
| 5144673 | Reflection sound compression apparatus | Mitsuhiko Serikawa, Akihisa Kawamura, Hiroko Yoshida, Katsuaki Sato | 1992-09-01 |
| 5123050 | Sound field control system | Mitsuhiko Serikawa, Akihisa Kawamura, Katsuaki Sato | 1992-06-16 |
| 5099511 | Exchange system for incoming calls from direct-in lines | — | 1992-03-24 |
| 5073942 | Sound field control apparatus | Hiroko Yoshida, Mitsuhiko Serikawa, Akihisa Kawamura, Katsuaki Sato | 1991-12-17 |
| 5051942 | Method and apparatus for calculating filter factors | Seiichi Ishikawa, Katsuaki Satoh | 1991-09-24 |