Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10701957 | Method for production of carotenoid | Toshiyuki Takahashi, Shotaro Uchizawa, Kentaro Shimizu, Tomoyuki Ishizaki | 2020-07-07 |
| 7022887 | Method for preparing diarylalkanes | — | 2006-04-04 |
| 6350930 | Method for producing aromatic compound | Shozo Hayashi | 2002-02-26 |
| 6255549 | Method for producing low bromine number fraction | Shozo Hayashi | 2001-07-03 |
| 6207866 | Method for producing diarylmethane or its derivatives | Tadanori Kawamata, Satoru Inoue, Shozo Hayashi | 2001-03-27 |
| 5880322 | Method for producing diarylmethane | Syozo Hayashi | 1999-03-09 |
| 5877362 | Method for producing diphenylmethane | Kazuo Sakamoto, Tadashi Tayanagi | 1999-03-02 |
| 5698023 | Process of producing copper phthalocyanine pigment having a bright tone | Tsutomu Takashima, Kikuo Sasaki | 1997-12-16 |
| 5241997 | Apparatus and method for filling and impregnating capacitors with a capacitor oil | Shoji Tai, Shozo Hayashi, Kunio Sugisawa | 1993-09-07 |
| 5171906 | Process for treating by-product oil | Shigenobu Kawakami, Keiji Endo, Atsushi Sato | 1992-12-15 |
| 5134761 | Electrical insulating oil composition and capacitors prepared therewith | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1992-08-04 |
| 5113029 | Electric insulating oil composition | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1992-05-12 |
| 5107395 | Method of producing insulating oil comprising dibenzylbenzene | Shigenobu Kawakami, Keiji Endo, Atsushi Sato | 1992-04-21 |
| 5081757 | Electrical insulating oil composition and capacitors prepared therewith | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1992-01-21 |
| 5017733 | Electrical insulating oil composition | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1991-05-21 |
| 5015793 | Electrical insulating oil composition | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1991-05-14 |
| 4982025 | Electrical insulating oil comprising improved fraction | Shigenobu Kawakami, Keiji Endo, Atsushi Sato | 1991-01-01 |
| 4967028 | Electrical insulating oil composition and electrical appliances impregnated therewith | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1990-10-30 |
| 4902841 | Method for producing electrical insulating oil composition | Shigenobu Kawakami, Keiji Endo, Atsushi Sato | 1990-02-20 |
| 4899009 | Method for producing m-benzyltolune | Shigenobu Kawakami, Keiji Endo, Atsushi Sato | 1990-02-06 |
| 4870221 | Oil-filled capacitor | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1989-09-26 |
| 4802058 | Novel method for refining electrical insulating oil | Shigenobu Kawakami, Keiji Endo, Atsushi Sato | 1989-01-31 |
| 4750083 | Electrical insulating oil composition | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1988-06-07 |
| 4716084 | Oil-impregnated capacitor | Atsushi Sato, Shigenobu Kawakami, Keiji Endo | 1987-12-29 |
| 4670348 | Electrical appliance impregnated with a curable impregnant composition | Atsushi Sato, Keiji Endo, Shigenobu Kawakami | 1987-06-02 |