Issued Patents All Time
Showing 251–275 of 288 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4748209 | Method for improving impulse destructive strength of electrical insulating materials | Yuichi Orikasa, Shinji Kojima, Takashi Inoue, Kaoru Yamamoto, Shigenobu Kawakami | 1988-05-31 |
| 4735703 | Method of increasing the concentration of straight chain paraffin material | Yoshikazu Murai, Tatsuo Yamaguchi, Kanji Mochizuki, Kunio Sugisawa | 1988-04-05 |
| 4736007 | Novel ethylene copolymers | Yuichi Orikasa, Shinji Kojima, Takashi Inoue, Kaoru Yamamoto, Shigenobu Kawakami | 1988-04-05 |
| 4734528 | Method for preparing 3-ethylbenzophenone | Isoo Shimizu, Yasuo Matsumura | 1988-03-29 |
| 4734824 | Electrical insulating oil and electrical appliances impregnated with the same | Keiji Endo, Shigenobu Kawakami, Hitoshi Yanagishita, Shozo Hayashi | 1988-03-29 |
| 4731483 | Method for preparing 3-ethylbenzophenone | Isoo Shimizu, Yasuo Matsumura, Shigenobu Kawakami | 1988-03-15 |
| 4717759 | Ethylene copolymers | Yuichi Orikasa, Shinji Kojima, Takashi Inoue, Kaoru Yamamoto, Shigenobu Kawakami | 1988-01-05 |
| 4716084 | Oil-impregnated capacitor | Shigenobu Kawakami, Keiji Endo, Hideyuki Dohi | 1987-12-29 |
| 4694100 | Method for producing .alpha.-(p-isobutylphenyl)propionic acid or its alkyl esters | Isoo Shimizu, Ryotaro Hirano, Yasuo Matsumura, Hideki Nomura, Kazumichi Uchida | 1987-09-15 |
| 4692270 | Surface active agent | Yoshikazu Murai, Tatsuo Yamaguchi, Kanji Mochizuki, Kunio Sugisawa | 1987-09-08 |
| 4686548 | Pressure-sensitive recording material | Naoya Takahashi, Keiji Endo, Eiichi Matsuzaka, Satoshi Narui | 1987-08-11 |
| 4681980 | Method for improving an electrical insulating hydrocarbon | Keiji Endo, Shigenobu Kawakami, Hitoshi Yanagishita, Shozo Hayashi | 1987-07-21 |
| 4670348 | Electrical appliance impregnated with a curable impregnant composition | Keiji Endo, Hideyuki Dohi, Shigenobu Kawakami | 1987-06-02 |
| 4642730 | Electrical insulating oil and oil-filled electrical appliances | Keiji Endo, Shigenobu Kawakami, Eiichi Matsuzaka, Satoshi Narui | 1987-02-10 |
| 4639833 | New electrical insulating oil and oil-filled electrical appliances | Keiji Endo, Shigenobu Kawakami, Hideyuki Dohi | 1987-01-27 |
| 4631632 | Impregnated capacitor | Masafumi Kano, Megumu Tanaka, Shigenobu Kawakami | 1986-12-23 |
| 4621302 | Electrical insulating oil and electrical appliances impregnated with the same | Keiji Endo, Shigenobu Kawakami, Hitoshi Yanagishita, Shozo Hayashi | 1986-11-04 |
| 4618914 | Electrical insulating oil and oil-filled electrical appliances | Keiji Endo, Shigenobu Kawakami, Hitoshi Yanagishita, Shozo Hayashi | 1986-10-21 |
| 4591948 | Oil-filled capacitor | Keiji Endo, Shigenobu Kawakami, Hideyuki Dohi | 1986-05-27 |
| RE32162 | Pressure sensitive record material employing diaryl alkane solvents | Yoshiaki Aida, Isoo Shimizu | 1986-05-27 |
| 4568793 | Electrical insulating oil and oil-filled electrical appliances | Shigenobu Kawakami, Hideyuki Dohi, Keiji Endo | 1986-02-04 |
| 4549034 | Refined electrical insulating oil and oil-filled electrical appliances | Keiji Endo, Shigenobu Kawakami, Hitoshi Yanagishita, Shozo Hayashi | 1985-10-22 |
| 4543207 | Electrical insulating oil and oil-filled electrical appliances | Keiji Endo, Shigenobu Kawakami, Hitoshi Yanagishita, Shozo Hayashi | 1985-09-24 |
| 4514229 | Paper sizing composition | Yoshikazu Murai, Masahito Goto, Kanji Mochizuki | 1985-04-30 |
| 4506107 | Electrical insulating oil and oil-filled electrical appliances | Keiji Endo, Shigenobu Kawakami, Hitoshi Yanagishita, Shozo Hayashi | 1985-03-19 |