Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11865964 | Optical apparatus, method for manufacturing optical apparatus, and headlight | Atsushi Yusa, Naoki Hiratoge, Junichi Yokoyama | 2024-01-09 |
| 8027519 | Imaging module for biometrics authentication, biometrics authentication apparatus and prism | Akito Sakemoto, Akihiko Soya, Takashi Sugiyama, Masaki Yamazaki | 2011-09-27 |
| 7988371 | Camera module | Susumu Aoki | 2011-08-02 |
| 7389050 | Wavelength multiplexer/demultiplexing device | Yoshiaki Minakawa | 2008-06-17 |
| 7079322 | Wavelength division multiplexer | Yoshiaki Minakawa | 2006-07-18 |
| 7027385 | Optical disk, disk substrate, and drive | Katsusuke Shimazaki, Yuuji Yamazaki, Hikaru Mizutani, Kenji Ohta, Hiroyoshi Takagi +1 more | 2006-04-11 |
| 6781926 | Magneto-optical head having heat sink layer | Osamu Ishizaki, Katsusuke Shimazaki, Hiroyuki Awano, Reiji Tamura, Toshinori Sugiyama | 2004-08-24 |
| 6760279 | Magneto-optical storage apparatus having the relation between numerical aperture and recording medium | — | 2004-07-06 |
| 6366541 | Optical recording medium with solid protective layer having self-lubricating property | Satoru Ohnuki, Toshinori Sugiyama, Masafumi Yoshihiro | 2002-04-02 |
| 6333089 | Substrate for information recording disk, mold and stamper for injection molding substrate, and method for making stamper, and information recording disk | Hiroyuki Hirata, Tatsuo Araki, Osamu Ishizaki, Hideo Daimon, Yasuhiko Kokufuda +1 more | 2001-12-25 |
| 6333900 | Optical recording medium, optical head, and optical recording device | Hideo Daimon, Osamu Ishizaki, Tatsuo Araki, Takeshi Ohnuki | 2001-12-25 |
| 6319580 | Recording disk and producing method therefor | Tatsuo Araki, Hiroyuki Ohta, Susumu Shibasaki, Hiroyuki Hirata, Osamu Ishizaki | 2001-11-20 |
| 6217968 | Optical recording medium, optical head and optical recording device | Hideo Daimon, Osamu Ishizaki, Tatsuo Araki, Takeshi Ohnuki | 2001-04-17 |
| 6160769 | Optical recording medium and optical recording device | Satoru Ohnuki, Toshinori Sugiyama, Masafumi Yoshihiro | 2000-12-12 |
| 6127017 | Substrate for information recording disk, mold and stamper for injection molding substrate, and method for making stamper, and information recording disk | Hiroyuki Hirata, Tatsuo Araki, Osamu Ishizaki, Hideo Daimon, Yasuhiko Kokufuda +1 more | 2000-10-03 |
| 6027801 | Magnetic recording medium | Kazuyoshi Adachi, Naoki Kitagaki, Osamu Ishizaki, Hideo Daimon | 2000-02-22 |
| 5068152 | Magnetic recording medium | Osamu Kitakami, Hideo Fujiwara | 1991-11-26 |
| 5059337 | Soft magnetic materials comprising 9 to 15 atomic percent carbon atoms | Osamu Kitakami, Hideo Fujiwara, Kunio Wakai | 1991-10-22 |
| 4828919 | Magnetic recording medium and process for preparing the same | Osamu Kitakami, Hideo Fujiwara | 1989-05-09 |