Issued Patents 1989
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886891 | Process for preparing 1,1-disubstituted ethylene derivative by reaction of lead with a carbinol derivative | Shigeru Torii, Masatoshi Taniguchi, Michio Sasaoka, Yoshihisa Tomotaki, Mitsuo Akada +2 more | 1989-12-12 |
| RE33116 | Single-stage oilless screw compressor system | — | 1989-11-21 |
| 4880768 | Sublimation type thermosensitive image transfer recording medium | Hidehiro Mochizuki, Masanaga Imamura, Masaru Shimada, Hiroyuki Uemura | 1989-11-14 |
| 4871609 | Multicolor thermosensitive image transfer sheet | Nobuo Mochizuki, Kunichika Morohoshi | 1989-10-03 |
| 4870951 | Endoscope having varying diameter contents in the insertable part | — | 1989-10-03 |
| 4868353 | Multiple switch assembly with interlock and lock release member | Takashi Ohta | 1989-09-19 |
| 4867136 | Endoscope apparatus | Susumu Takahashi, Takeaki Nakamura, Tatsuya Yamaguchi, Takashi Tsukaya, Tsutomu Yamamoto +19 more | 1989-09-19 |
| 4865659 | Heteroepitaxial growth of SiC on Si | Mitsuhiro Shigeta, Katsuki Furukawa, Yoshihisa Fujii, Akitsugu Hatano, Atsuko Uemoto +1 more | 1989-09-12 |
| 4862246 | Semiconductor device lead frame with etched through holes | Masachika Masuda | 1989-08-29 |
| 4850030 | Radio communication system for communicating between two stations upon automatic switching to an idle communication channel | Hiroyuki Hashimoto, Nobuo Iizuka | 1989-07-18 |
| 4847144 | Thermosensitive image transfer recording medium | Kunichika Morohoshi | 1989-07-11 |
| 4847826 | Disk cartridge | Kiyonori Sakaguchi, Makio Takaiwa | 1989-07-11 |
| 4843934 | Rhythm tone source assigning apparatus for use in electronic musical instrument | Jun Sugiyama, Kosei Terada, Shigenori Oguri | 1989-07-04 |
| 4838518 | Pressure control valve | Kouji Kobayashi, Nobuaki Miki | 1989-06-13 |
| 4838313 | Solenoid-operated pressure control valve | Kouji Kobayashi, Nobuaki Miki | 1989-06-13 |
| 4838517 | Pressure control valve | Nobuaki Miki, Kouji Kobayashi | 1989-06-13 |
| 4833507 | Electron emission device | Akira Shimizu, Takeo Tsukamoto, Masao Sugata, Isamu Shimoda, Masahiko Okunuki | 1989-05-23 |
| 4829346 | Field-effect transistor and the same associated with an optical semiconductor device | Kensuke Kasahara, Tomoji Terakado, Yasumasa Inomoto, Tomohiro Itoh | 1989-05-09 |
| 4825082 | Electron emitting apparatus | Masahiko Okunuki, Takeo Tsukamoto, Akira Shimizu, Masao Sugata, Isamu Shimoda | 1989-04-25 |
| 4822516 | Detergent composition for clothing incorporating a cellulase | Susumu Ito, Kikuhiko Okamoto, Eiichi Hoshino, Michio Yokosuka, Moriyasu Murata | 1989-04-18 |
| 4818605 | Thermosensitive image transfer recording medium | Nobuo Mochizuki, Motoo Tasaka, Kunichika Morohoshi | 1989-04-04 |
| 4815950 | Multi-stage compressor capacity control apparatus | Masakazu Aoki | 1989-03-28 |
| 4809681 | Electrocardiographic measurement method for controlling an intra-aortic balloon pump | Adrian Kantrowitz, Paul S. Freed, Hiroyuki Tachi | 1989-03-07 |
| 4811109 | Image processing system | Katsuichi Shimizu, Takehiko Shibata, Yoshikazu Yokomizo, Koichi Murakami, Tadashi Yoshida +3 more | 1989-03-07 |
| 4810934 | Electron emission device | Isamu Shimoda, Takeo Tsukamoto, Akira Shimizu, Masao Sugata, Masahiko Okunuki | 1989-03-07 |