Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7702214 | Information storage medium and apparatus for reproducing the same | Kaoru Yamamoto, Takao Sawabe, Hidehiro Ishii, Shozo Ema | 2010-04-20 |
| 7398010 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Akihiro Tozaki, Hidehiro Ishii, Junichi Yoshio, Hiroshi Nakamura, Takao Sawabe +2 more | 2008-07-08 |
| 7340156 | Information storage medium with aggregate attribute information, and apparatus for reproducing the same | Hidehiro Ishii, Shozo Ema, Takao Sawabe, Yoshinori Hasegawa, Kaoru Yamamoto | 2008-03-04 |
| 7330643 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Takao Sawabe, Junichi Yoshio, Hidehiro Ishii, Hiroshi Nakamura, Kaoru Yamamoto +1 more | 2008-02-12 |
| 7194196 | Information record medium, and apparatus for and method of reproducing the same | Kaoru Yamamoto, Takao Sawabe, Hidehiro Ishii, Shozo Ema | 2007-03-20 |
| 6965727 | Information record medium and apparatus for reproducing the same | Takao Sawabe, Kaoru Yamamoto, Hidehiro Ishii, Shozo Ema, Yoshinori Hasegawa | 2005-11-15 |
| 6859421 | Apparatus for reproducing information from record medium on which audio information of differing recording methods is recorded | Takao Sawabe, Kaoru Yamamoto, Hidehiro Ishii, Shozo Ema, Yoshinori Hasegawa | 2005-02-22 |
| 6778761 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Yoshiaki Moriyama, Hidehiro Ishii, Hiroyuki Kurashina, Takao Sawabe, Junichi Yoshio | 2004-08-17 |
| 6760540 | Information storage medium and apparatus for reproducing the same | Kaoru Yamamoto, Takao Sawabe, Hidehiro Ishii, Shozo Ema | 2004-07-06 |
| 6741797 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Akihiro Tozaki, Hidehiro Ishii, Junichi Yoshio, Hiroshi Nakamura, Takao Sawabe +2 more | 2004-05-25 |
| 6687211 | Information record medium on which audio information differing in recording methods are recorded and apparatus for reproducing the same | Takao Sawabe, Kaoru Yamamoto, Hidehiro Ishii, Shozo Ema, Yoshinori Hasegawa | 2004-02-03 |
| 6597861 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Akihiro Tozaki, Hidehiro Ishii, Hiroshi Nakamura, Takao Sawabe, Kaoru Yamamoto +1 more | 2003-07-22 |
| 6574187 | Audio information recording medium and audio information reproducing apparatus | Hidehiro Ishii, Takao Sawabe, Shozo Ema, Kaoru Yamamoto, Yoshinori Hasegawa | 2003-06-03 |
| 6396781 | Audio information recording medium and audio information reproducing apparatus | Hidehiro Ishii, Takao Sawabe, Shozo Ema, Kaoru Yamamoto, Yoshinori Hasegawa | 2002-05-28 |
| 6343055 | Apparatus for and method of reproducing music together with information representing beat of music | Shozo Ema, Hidehiro Ishii, Takao Sawabe, Yoshinori Hasegawa, Kaoru Yamamoto +2 more | 2002-01-29 |
| 6308006 | Information storage medium and apparatus for reproducing the same | Kaoru Yamamoto, Takao Sawabe, Hidehiro Ishii, Shozo Ema | 2001-10-23 |
| 6272082 | Audio information recording medium and audio information reproducing apparatus | Hidehiro Ishii, Takao Sawabe, Shozo Ema, Kaoru Yamamoto, Yoshinori Hasegawa | 2001-08-07 |
| 6236804 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Akihiro Tozaki, Hidehiro Ishii, Junichi Yoshio, Hiroshi Nakamura, Takao Sawabe +2 more | 2001-05-22 |
| 6108486 | Information record medium, apparatus for recording the same and apparatus for reproducing the same enabling easy access to information | Takao Sawabe, Junichi Yoshio, Hidehiro Ishii, Hiroshi Nakamura, Akihiro Tozaki | 2000-08-22 |
| 6094638 | Audio signal processing apparatus and audio signal processing method for multi channel audio reproduction system | Shozo Ema, Hirokazu Inotani, Takao Sawabe, Yoshinori Hasegawa, Hidehiro Ishii +1 more | 2000-07-25 |
| 6014495 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Yoshiaki Moriyama, Hidehiro Ishii, Hiroyuki Kurashina, Takao Sawabe, Junichi Yoshio | 2000-01-11 |
| 5960152 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Takao Sawabe, Junichi Yoshio, Hidehiro Ishii, Hiroshi Nakamura, Kaoru Yamamoto +1 more | 1999-09-28 |
| 5805537 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Kaoru Yamamoto, Hidehiro Ishii, Hiroshi Nakamura, Tadashi Noguchi, Takao Sawabe +1 more | 1998-09-08 |
| 5187734 | Telephone message recording device | Takayuki Sato, Masuo Ota, Tatsuro Nagao | 1993-02-16 |
| 5003411 | Method for recording/reproducing and searching digital signals using a helical scan type rotary head | Shinichi Nagahara, Tomoyuki Suzuki, Tomoyasu Yamada, Ichiro Miyake | 1991-03-26 |