Issued Patents All Time
Showing 51–75 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5791767 | Semiconductor exposure device | Kiyotada Nakamura, Takashi Mori, Tetsuo Kikuchi | 1998-08-11 |
| 5783296 | Magnetic recording medium | Kazunori Tamazaki, Shigeharu Watase | 1998-07-21 |
| 5781311 | Planar light source and image reading device | Yoshiyuki Takeda | 1998-07-14 |
| 5772884 | Porous polytetrafluoroethylene film and process for preparation thereof | Osamu Tanaka, Toshio Kusumi, Jun Asano, Katsutoshi Yamamoto, Shinichi Chaen +2 more | 1998-06-30 |
| 5712530 | Mercury lamp of the short arc type having an electrode terminal with tantalum thereon | Toshiyuki Shima | 1998-01-27 |
| 5709811 | Magnetic material for microwave and high-frequency circuit component using the same | Toshifumi Satoh, Hirotaka Furukawa, Takayuki Takeuchi, Kenji Iijima, Koichi Kugimiya | 1998-01-20 |
| 5627589 | Imaging apparatus with CCD holders | Satoshi Ejima | 1997-05-06 |
| 5589221 | Magnetic thin film, and method of manufacturing the same, and magnetic head | Masayoshi Hiramoto, Koichi Kugimiya, Kenji Iijima | 1996-12-31 |
| 5562986 | Polytetrafluoroethylene fibers, polytetrafluoroethylene materials and process for preparation of the same | Katsutoshi Yamamoto, Osamu Tanaka, Toshio Kusumi, Shinichi Chaen, Jun Asano +1 more | 1996-10-08 |
| 5555522 | Semiconductor memory having redundant cells | Kenji Anami, Shigeki Ohbayashi | 1996-09-10 |
| 5518642 | Oxide magnetic material | Nobuya Matsutani, Koichi Kugimiya, Osamu Ishii, Yasuyuki Aono | 1996-05-21 |
| D366106 | Air filter | Katsutoshi Yamamoto, Osamu Tanaka, Toshio Kusumi, Shinichi Chaen, Jun Asano +1 more | 1996-01-09 |
| 5443913 | Magnetic recording medium | Masahide Kohno, Kazuhiro Kuroda, Yasushi Ishikawa, Hideki Sasaki, Yasufumi Takasugi +1 more | 1995-08-22 |
| 5409515 | Filter apparatus and filter element | Katsutoshi Yamamoto, Osamu Tanaka, Toshio Kusumi, Shinichi Chaen, Jun Asano +1 more | 1995-04-25 |
| 5352522 | Composite material comprising metallic alloy grains coated with a dielectric substance | Koichi Kugimiya, Yasuhiro Sugaya, Mitsuo Satomi, Ken Hirota | 1994-10-04 |
| 5350628 | Magnetic sintered composite material | Koichi Kugimiya, Yasuhiro Sugaya, Ken Hirota, Mitsuo Satomi | 1994-09-27 |
| 5238507 | Magnetic material | Koichi Kugimiya, Yasuhiro Sugaya, Ken Hirota, Mitsuo Satomi | 1993-08-24 |
| 5234739 | Polytetrafluoroethylene porous film and preparation and use thereof | Shinji Tanaru, Osamu Tanaka, Hirofumi Nishibayashi, Katsutoshi Yamamoto, Toshio Kusumi | 1993-08-10 |
| 5225131 | Process for producing multilayer polytetrafluoroethylene porous membrane and semisintered polytetrafluoroethylene multilayer structure | Shinji Tamaru, Katsutoshi Yamamoto, Osamu Tanaka, Hirofumi Nishibayashi | 1993-07-06 |
| 5217666 | Process for producing porous polytetrafluoroethylene film | Shinji Tamaru, Hirofumi Nishibayashi, Katsutoshi Yamamoto, Osamu Tanaka | 1993-06-08 |
| 5183631 | Composite material and a method for producing the same | Koichi Kugimiya, Yasuhiro Sugaya, Mitsuo Satomi, Ken Hirota | 1993-02-02 |
| 5079215 | Bi, alkaline earth, Cu extruded oxide superconductive material having a C-plane orientation greater than 80% | Kouichi Kugimiya, Seiji Adachi, Syunichiro Kawashima | 1992-01-07 |
| 5064593 | Process for producing multilayer polytetrafluoroethylene porous membrane | Shinji Tamaru, Katsutoshi Yamamoto, Osamu Tanaka, Hirofumi Nishibayashi | 1991-11-12 |
| 5034285 | Magnetic head | Mitsuo Satomi, Ken Hirota | 1991-07-23 |
| 4918035 | Process for the preparation of complex perovskite type compounds | Syunichiro Kawashima | 1990-04-17 |