Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9496685 | Laser emitting apparatus and master oscillator power amplifier system | Goro Fujita, Michio Oka, Hiroshi Yoshida, Mitsunori Ueda, Kenji Tanaka | 2016-11-15 |
| 8531775 | Liquid lens and image pickup apparatus | Kayoko Tanaka, Yoshiaki Kato, Akira Suzuki, Sachiko SAKAIGAWA | 2013-09-10 |
| 8203537 | Tactile and visual user interface device and personal digital assistant | Tadashi Tanabe, Tsutomu Takahashi, Akira Suzuki, Nobuyuki Nagai | 2012-06-19 |
| 8120860 | Conversion lens, conversion lens system, and imaging device | Akira Suzuki, Masahiko Ito, Yoshiki Okamoto | 2012-02-21 |
| 8014076 | Variable focal length lens, camera module, and electronic apparatus | Akira Suzuki, Mamoru Suzuki, Kayoko Tanaka, Katsuhiro Seo | 2011-09-06 |
| 7978400 | Electro-wetting apparatus and method of driving electro-wetting apparatus | Yoshihiro Takemoto, Yoshiaki Kato | 2011-07-12 |
| 7697187 | Electrowetting device and varifocal lens, optical pickup device, optical recording/reproduction device, droplet operation device, optical element, zoom lens, imaging device, light modulating device, and display device using the same | Yoshiaki Kato | 2010-04-13 |
| RE40371 | Optical disc recording/reproduction apparatus and method | Isao Ichimura, Kenji Yamamoto, Kiyoshi Ohsato, Toshio Watanabe, Akira Suzuki | 2008-06-10 |
| 7298559 | Variable focus lens and optical device using the same as well as method of manufacturing variable focus lens | Yoshiaki Kato | 2007-11-20 |
| 7170693 | Objective lens, and optical pickup device using the objective lens | Shinichi Nagashima | 2007-01-30 |
| 6977782 | Object lens producing device and producing method | Shinichi Nagashima | 2005-12-20 |
| 6829210 | Optical head and optical pickup | Kenji Yamamoto, Kiyoshi Osato | 2004-12-07 |
| 6674696 | Focus controlling apparatus and method, and optical disc drive | Isao Ichimura, Kenji Yamamoto, Kiyoshi Ohsato, Toshio Watanabe | 2004-01-06 |
| 6594204 | Lens holder, method for manufacturing lens holder, metal die for producing lens holder and objective lens device | Kenji Yamamoto, Kiyoshi Osato | 2003-07-15 |
| 6570827 | OPTICAL ELEMENT FOR CORRECTION OF CHROMATIC ABERRATION, OPTICAL PICK-UP DEVICE HAVING OPTICAL ELEMENT FOR CORRECTION OF CHROMATIC ABERRATION, OPTICAL REPRODUCING DEVICE HAVING OPTICAL PICK-UP DEVICE AND OPTICAL RECORDING AND REPRODUCING DEVICE | Kenji Yamamoto, Isao Ichimura, Toshio Watanabe, Akira Suzuki, Kiyoshi Osato | 2003-05-27 |
| 6414931 | Lens driving device, optical head and optical disc system | Isao Ichimura, Kenji Yamamoto, Kiyoshi Ohsato, Toshio Watanabe | 2002-07-02 |
| 6292453 | Optical disc recording/reproduction apparatus having a lens group, focus, servo, and jog mode adjustment | Isao Ichimura, Kenji Yamamoto, Kiyoshi Ohsato, Toshio Watanabe, Akira Suzuki | 2001-09-18 |
| 6212136 | Magneto-optical disc apparatus with means to change the angle and distance between a magnetic field generating source and a magneto-optical disc | Yoshinori Matsumoto | 2001-04-03 |
| 6115347 | Optical pick-up device, optical recording/reproducing apparatus and objective lens | Isao Ichimura, Kenji Yamamoto, Kiyoshi Ohsato, Toshio Watanabe, Atsushi Fukumoto +1 more | 2000-09-05 |
| 6104691 | Objective lens unit and recording/reproduction apparatus | Kenji Yamamoto, Isao Ichimura, Toshio Watanabe, Kiyoshi Ohsato | 2000-08-15 |
| 6097688 | Recording/reproducing apparatus and recording/reproducing method for optical recording media | Isao Ichimura, Kenji Yamamoto, Kiyoshi Ohsato, Toshio Watanabe, Atsushi Fukumoto +1 more | 2000-08-01 |
| 6058095 | Objective lens having a doublet lens with high numerical aperture | Kenji Yamamoto, Isao Ichimura, Toshio Watanabe, Kiyoshi Ohsato | 2000-05-02 |
| 6055113 | Optical pickup and an optical pickup objective lense assembling method | Kenji Yamamoto, Isao Ichimura, Toshio Watanabe, Akira Suzuki, Kiyoshi Ohsato | 2000-04-25 |
| 6041031 | Optical disc recording/reproduction apparatus and method | Isao Ichimura, Kenji Yamamoto, Kiyoshi Ohsato, Toshio Watanabe, Akira Suzuki | 2000-03-21 |
| 6005834 | Optical recording medium recording and reproducing apparatus and optical pickup device | Toshio Watanabe, Isao Ichimura, Atsushi Fukumoto, Kenji Yamamoto, Kiyoshi Ohsato | 1999-12-21 |