Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12044654 | Measurement method for non-destructive inspection, measurement device, non-destructive inspection method, information processing device of non-destructive inspection, and recording medium | Hiroshi Morita, Katsunori Teshima, Yoshiyuki Hashimoto, Motonori Takakura | 2024-07-23 |
| 8385181 | Objective lens and optical pickup apparatus | — | 2013-02-26 |
| 8208361 | Objective lens and optical pickup apparatus | — | 2012-06-26 |
| 7924683 | Optical pickup apparatus with objective optical system and guiding optical system | Junji Hashimura, Tohru Kimura | 2011-04-12 |
| 7715299 | Objective optical system, optical pickup apparatus and optical information recording/reproducing apparatus with diffraction structure and optical path difference-generating structure | — | 2010-05-11 |
| 7636290 | Optical element, optical objective element, and optical pickup apparatus having diffractive structure and optical difference giving structure | Kouhei Ohta | 2009-12-22 |
| 7525879 | Objective optical element and optical pickup apparatus | Junji Hashimura, Kiyono Ikenaka | 2009-04-28 |
| 7463568 | Objective optical element and optical pickup apparatus | Kohei Ota, Shinichiro Saito, Yuichi Atarashi, Katsuya Sakamoto, Hidekazu Totsuka +1 more | 2008-12-09 |
| 7440382 | Objective optical element with multiple diffractive surfaces and optical pickup device | — | 2008-10-21 |
| 7330406 | Optical pickup device and optical element used for the same | Kiyono Ikenaka | 2008-02-12 |
| 7200079 | Optical pickup device and optical element used for the same | Kiyono Ikenaka | 2007-04-03 |
| 7120108 | Objective lens and optical pickup device | Kohei Ota | 2006-10-10 |
| 6952390 | Optical pickup apparatus, condensing optical system, and optical element | — | 2005-10-04 |