Issued Patents All Time
Showing 25 most recent of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8416480 | Hologram reproducing apparatus, hologram reproducing method, and phase modulating element | Tomiji Tanaka, Masaaki Hara, Kazutatsu Tokuyama, Satoru Seko, Shinji Yamada | 2013-04-09 |
| 8194517 | Hologram recording and reproducing device and method for recording hologram | Tomiji Tanaka, Takahiro Takeda | 2012-06-05 |
| 8174745 | Optical unit, method for controlling drive, and holographic apparatus | Satoru Seko | 2012-05-08 |
| 7969846 | Hologram recording and reproducing device and method for recording hologram | Tomiji Tanaka, Takahiro Takeda | 2011-06-28 |
| 7963138 | Method and apparatus for forming a changed diameter portion of a workpiece | Tohru Irie | 2011-06-21 |
| 7652968 | Method and apparatus for recording and/or reproducing a hologram | — | 2010-01-26 |
| 7283286 | Hologram recording/reproducing device and optical unit | Atsushi Fukumoto, Mikio Sugiki, Mitsuru Toishi, Naoto Kojima, Koji Takasaki | 2007-10-16 |
| 7006412 | Optical disk drive and optical disc recording method | Toru Nagara | 2006-02-28 |
| 6685907 | Process for producing silica particles suitable for use as filler for paper | Masashi Matsuda, Masasuke Watanabe, Motohide Wada, Osamu Kitao | 2004-02-03 |
| 6654323 | Method of tracking servo for optical pickup device | Koji Takasaki, Tsutomu Maruyama | 2003-11-25 |
| 6632274 | Ultrafine particle dispersion composition, composition for interlayer for laminated glass, interlayer and laminated glass | Yoshimi Kawamoto, Fuminori Osako, Kuniko Nagai | 2003-10-14 |
| 6413373 | Process for producing silica particles suitable for use as filler for paper | Masashi Matsuda, Masasuke Watanabe, Motohide Wada, Osamu Kitao | 2002-07-02 |
| 6264907 | Process for producing silica particles suitable for use as filler for paper | Masashi Matsuda, Masasuke Watanabe, Motohide Wada, Osamu Kitao | 2001-07-24 |
| 5530336 | Battery protection circuit | Yasuhito Eguchi, Kanji Murano, Akira Sanpei | 1996-06-25 |
| 5168487 | Optical recording and/or reproducing apparatus | Kiyoshi Ohsato, Toshiki Udagawa | 1992-12-01 |
| 5083212 | Apparatus and method for recording a color television signal on an optical disc | Hideo Owa, Mikio Sugiki, Hiroo Takahashi | 1992-01-21 |
| 5031056 | Tape tension mechanism | Katsuya Nozawa, Shinichiro Terada | 1991-07-09 |
| 4992652 | Focus error detecting circuit for disk player | — | 1991-02-12 |
| 4972337 | Device for controlling rotation of a magnet used in a magneto-optical recording system | Naoya Eguchi, Osamu Kawakubo, Tamotsu Maeda, Susumu Tosaka | 1990-11-20 |
| 4964589 | Mode changing mechanism for a tape player | — | 1990-10-23 |
| 4939602 | Cassette holder mechanism | Kimichika Yamada, Hidenori Muramatsu, Katsuya Nozawa, Yoshihiko Goto, Hiroyuki Ohkawa | 1990-07-03 |
| 4899951 | Braking mechanism for use in a magnetic recording apparatus | Shinichiro Terada, Katsuya Nozawa | 1990-02-13 |
| 4785362 | Driving force branching gear mechanism | Katsuya Nozawa, Hidenori Muramatsu, Kimichika Yamada, Yoshihiko Goto, Hiroyuki Ohkawa | 1988-11-15 |
| 4747089 | Method and apparatus for focusing servo control | Naoya Eguchi, Mikio Sigiki | 1988-05-24 |
| 4586096 | Cassette loading/ejecting device | — | 1986-04-29 |