Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6902842 | Current collector of positive electrode and sodium-sulfur battery using the same | Michitaka Hidaka, Kazuhito Furuta, Masaki Shimizu, Hideki Rachi | 2005-06-07 |
| 6577103 | Emergency power system, and system for automatically detecting whether or not failure of single cell occurs in battery for use in the system | Kouji Tanaka, Koichi Nakahata, Keiichi Mori, Akihiro Bito | 2003-06-10 |
| 5601764 | Process for making TiC-base/SiC whisker composite ceramic cutting tools | Junichiro Suzuki, Shoji Sakakibara, Masakazu Watanabe | 1997-02-11 |
| 5439854 | TiC-base/SiC whisker composite ceramic cutting tools | Junichiro Suzuki, Shoji Sakakibara, Masakazu Watanabe | 1995-08-08 |
| 4997798 | Process for producing aluminum nitride sintered body with high thermal conductivity | Masakazu Watanabe, Kazuhiko Ikoma | 1991-03-05 |
| 4961987 | Aluminum nitride sintered body with high thermal conductivity and process for producing same | Masakazu Watanabe, Kazuhiko Ikoma | 1990-10-09 |
| 4956317 | Whisker-reinforced ceramics | Hitoshi Yokoi, Masakazu Watanabe, Satoshi Iio | 1990-09-11 |
| 4946807 | Composite ceramic material reinforced with silicon carbide whiskers | Masakazu Watanabe | 1990-08-07 |
| 4892703 | Surface structure of A1N substrate and a process for producing the same | Satoshi Iio | 1990-01-09 |
| 4877760 | Aluminum nitride sintered body with high thermal conductivity and process for producing same | Masakazu Watanabe, Kazuhiko Ikoma | 1989-10-31 |
| 4840853 | Surface structure of AlN substrate and a process for producing the same | Satoshi Iio | 1989-06-20 |
| 4800137 | Composite layer aluminum nitride base sintered body | Masakazu Watanabe, Kazuhiko Ikoma | 1989-01-24 |
| 4760312 | Dense silicon carbide microwave absorber for electron linear accelerator | Masakazu Watanabe | 1988-07-26 |
| 4701426 | Silicon carbide-graphite composite material | Masakazu Watanabe | 1987-10-20 |
| 4695517 | Composite layer aluminum nitride base sintered body | Masakazu Watanabe, Kazuhiko Ikoma | 1987-09-22 |
| 4690909 | Silicon carbide-graphite composite material and process for producing same | Masakazu Watanabe | 1987-09-01 |
| 4668452 | Process for producing silicon carbide heating elements | Masakazu Watanabe, Shunkichi Nozaki, Yasushi Matsuo, Isamu Fukuura | 1987-05-26 |
| 4638268 | Microwave absorber comprised of a dense silicon carbide body which is water cooled | Masakazu Watanabe | 1987-01-20 |
| 4375517 | Sintered cubic boron nitride and process for producing the same | Masakazu Watanabe, Isamu Fukuura, Yasushi Matsuo | 1983-03-01 |
| 4336216 | Process for producing silicon carbide heating elements | Masakazu Watanabe, Yasushi Matsuo | 1982-06-22 |