Issued Patents All Time
Showing 26–50 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652816 | Optical coupler and method for producing the same | Kohji Minami, Kuniaki Okada, Hiroyuki Yamamoto, Yukio Kurata | 1997-07-29 |
| 5576149 | Method for producing a tapered waveguide | Hiroyuki Yamamoto, Yukio Kurata, Keiji Sakai, Kuniaki Okada, Kouji Minami | 1996-11-19 |
| RE35332 | Optical pickup device with diffraction device | Toshiya Nagahama, Yasuo Nakata, Yukio Kurata | 1996-09-24 |
| 5515354 | Optical pickup | Takahiro Miyake, Yukio Kurata | 1996-05-07 |
| 5512733 | Cooker | Hiroyoshi Takikawa, Nobuko Kakimoto, Shinsuke Ise | 1996-04-30 |
| 5509094 | Mode splitter and a magneto-optical disk pick-up device having the mode splitter | Kohji Minami, Kuniaki Okada, Hiroyuki Yamamoto, Yukio Kurata, Keiji Sakai | 1996-04-16 |
| 5473470 | Polarization detector | Takahiro Miyake, Yasuo Nakata, Yukio Kurata | 1995-12-05 |
| 5465315 | Display apparatus having a plurality of display devices | Keiji Sakai, Hiroyuki Yamamoto, Yukio Kurata, Yasuo Nakata, Takahiro Miyake | 1995-11-07 |
| 5446719 | Optical information reproducing apparatus | Yukio Kurata, Shigeki Tsuji | 1995-08-29 |
| 5440427 | Optical pick-up device having an optical diffraction grating element | Takahiro Miyake, Yukio Kurata | 1995-08-08 |
| 5428472 | Optical scan device having an optical diffraction grating element | Takahiro Miyake, Yukio Kurata | 1995-06-27 |
| 5428595 | Optical information recording and reproducing device | Hideaki Sato, Yukio Kurata, Hiroyuki Yamamoto, Nobuo Ogata, Katsuhiro Kubo | 1995-06-27 |
| 5428584 | Pickup device for a magneto-optical information recording system | Hiroyuki Yamamoto, Renzaburou Miki, Kuniaki Okada, Yukio Kurata, Kouji Minami | 1995-06-27 |
| 5410623 | Optical device having two optical waveguides connected and a method of producing the same | Kouji Minami, Kuniaki Okada, Renzaburo Miki, Hiroyuki Yamamoto, Yukio Kurata | 1995-04-25 |
| 5410529 | Optical pickup apparatus | Yukio Kurata, Yukinori Nishitani, Takahiro Miyake | 1995-04-25 |
| 5410622 | Optical integrated circuit having light detector | Kuniaki Okada, Kouji Minami, Renzaburo Miki, Hiroyuki Yamamoto, Yukio Kurata | 1995-04-25 |
| 5408450 | Optical pickup apparatus | Toshiya Nagahama, Yukio Kurata | 1995-04-18 |
| 5408264 | Three-dimensional image display apparatus for optically synthesizing images formed on different surfaces on a display screen | Yukio Kurata, Keiji Sakai, Takahiro Miyake, Toshio Ishikawa | 1995-04-18 |
| 5402890 | Box container for rigid sheet bodies | Toshitsugu Yajima | 1995-04-04 |
| 5334670 | Elastomer and process for production thereof | Yuji Uchida, Toshikazu Kaneda, Toshiaki Moriya, Tsutomu Kumazawa | 1994-08-02 |
| 5331621 | Optical pickup apparatus and a hologram element used for same | Takahiro Miyake, Katushiro Kubo, Tetsuo Ueyama, Yukio Kubata | 1994-07-19 |
| 5320898 | Paper suitable for ink fusion transfer type thermal printer and copiers, and a manufacturing method thereof | Masao Matsukawa, Yoshihiro Kuroyama, Teruhisa Shimada | 1994-06-14 |
| 5306788 | Elastomer and process for production thereof | Yuji Uchida, Toshikazu Kaneda, Toshiaki Moriya, Tsutomu Kumazawa | 1994-04-26 |
| 5283772 | Optical head | Takahiro Miyake, Yukio Kurata, Hideaki Sato | 1994-02-01 |
| 5283690 | Optical diffraction grating element | Takahiro Miyake, Yukio Kurata | 1994-02-01 |