Issued Patents All Time
Showing 826–842 of 842 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331627 | Alumina sintered products and process for their production | Yoshihiro Yamamoto, Kenji Sakurai | 1982-05-25 |
| 4329479 | Process for producing 1,3-dithiol-2-ylidene malonic acid dialkyl esters | Kunihiro Yabutani, Hisanori Matsui, Hitoshi Kurono | 1982-05-11 |
| 4327223 | Process for producing 1,3-dithiol-2-ylidene malonates | Hisanori Matsui, Kunihiro Yabutani, Hitoshi Kurono | 1982-04-27 |
| 4325710 | Sintered ceramics for cutting tools and manufacturing process thereof | Yoshihiro Yamamoto | 1982-04-20 |
| 4305340 | Method of forming a box-shaped structure from a foldable metal sheet | Takashi Iwaki, Takeji Tanaka, Yoshitomo Tanaka | 1981-12-15 |
| 4305004 | Current supply circuit for electronic equipment of an automotive vehicle | Yukitsugu Hirota | 1981-12-08 |
| 4298669 | Electrophotographic process and apparatus | Giichi Marushima, Umi Tosaka, Shinkichi Takahashi, Takao Komiyu | 1981-11-03 |
| 4292049 | Ceramic materials for high-speed cutting | Osamu Kato | 1981-09-29 |
| 4269921 | Method for preventing degradation of a liquid developer for electrostatic recording | Terukuni Tsuneda | 1981-05-26 |
| 4230058 | Method and apparatus for manufacturing box-shaped structure from metal sheet | Takashi Iwaki, Takeji Tanaka, Yoshitomo Tanaka | 1980-10-28 |
| 4222776 | Electrophotographic method | Syusei Tsukada, Yujiro Ando | 1980-09-16 |
| 4218246 | Method of electrophotographic recording involving removal of excess developer liquid by corona treatment | Takashi Saito | 1980-08-19 |
| 4204873 | Sintered ceramic body for cutting tools | Yoshihiro Yamamoto, Kenji Sakurai | 1980-05-27 |
| 4203733 | Aluminum nitride sintered body coated with alumina | Yoshihiro Yamamoto | 1980-05-20 |
| 4203690 | Ceramic cutting tip | Kenji Sakurai | 1980-05-20 |
| 4199755 | Optical smoke detector | — | 1980-04-22 |
| 4194020 | Method for preventing degradation of a liquid developer for electrostatic recording | Terukuni Tsuneda | 1980-03-18 |