Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10894770 | Fullerene derivative and n-type semiconductor material | Takabumi Nagai, Kenji Adachi, Yutaka Ie, Makoto Karakawa | 2021-01-19 |
| 10793584 | Naphthobischalcogenadiazole derivative and production method therefor | Yutaka Ie, Takuji Seo, Taichi Moriyama | 2020-10-06 |
| 10388878 | Fullerene derivative and N-type semiconductor material | Takabumi Nagai, Kenji Adachi, Yutaka Ie, Makoto Karakawa | 2019-08-20 |
| 8859717 | Nitrogen-containing fused ring compound, nitrogen-containing fused ring polymer, organic thin film, and organic thin film element | Yutaka Ie, Masashi Ueta, Masato Ueda | 2014-10-14 |
| 8841410 | Nitrogen-containing condensed ring compound, nitrogen-containing condensed ring polymer, organic thin film, and organic thin film element | Yutaka Ie, Masashi Ueta, Masato Ueda | 2014-09-23 |
| 8378338 | Conjugated compound, nitrogenated condensed-ring compound, nitrogenated condensed-ring polymer, organic thin film, and organic thin film element | Yutaka Ie, Makoto Okabe, Masashi Nitani, Masato Ueda | 2013-02-19 |
| 8207184 | Condensation compound between fluorinated cyclopentane ring and aromatic ring, and process for producing the same | Yutaka Ie | 2012-06-26 |
| 8158275 | Fluorine-containing compound and method for producing same, fluorine-containing polymer, organic thin film, and organic thin film device | Yutaka Ie, Masashi Nitani, Masato Ueda | 2012-04-17 |
| 8129400 | Condensation compound between fluorinated cyclopentane ring and aromatic ring, and process for producing the same | Yutaka Ie | 2012-03-06 |
| 8114956 | Polymer having unit obtained by condensation of difluorocyclopentanedione ring and aromatic ring, organic thin film using the same, and organic thin film device | Yutaka Ie, Yoshikazu Umemoto, Masato Ueda | 2012-02-14 |
| 8008336 | Condensation compound between fluorinated cyclopentane ring and aromatic ring, and process for producing the same | Yutaka Ie | 2011-08-30 |
| 7932347 | Polymer comprising unit comprising fluorocyclopentane ring fused with aromatic ring and organic thin film and organic thin film element both comprising the same | Yutaka Ie, Yoshikazu Umemoto, Masato Ueda | 2011-04-26 |
| 6854706 | Electromagnetic valve | Hideharu Sato, Shinichi Yoshimura, Takumi Matsumoto | 2005-02-15 |
| 6748976 | Electromagnetic valve | Hideharu Sato, Shinichi Yoshimura, Takumi Matsumoto | 2004-06-15 |
| 6749175 | Solenoid for solenoid valve | Hideharu Sato, Shinichi Yoshimura, Takumi Matsumoto | 2004-06-15 |
| 6745790 | Electromagnetic valve | Hedeharu Sato, Shinichi Yoshimura, Takumi Matsumoto | 2004-06-08 |
| 6664877 | Solenoid for electromagnetic valve | Hideharu Sato, Shinichi Yoshimura, Takumi Matsumoto | 2003-12-16 |
| 6542059 | Solenoid for electromagnetic valve | Hideharu Sato, Shinichi Yoshimura, Takumi Matsumoto | 2003-04-01 |
| 6251361 | Non-fibrous potassium titanate and method for producing the same | Hidefumi Konnai, Yoshio Suzuki | 2001-06-26 |
| 6216725 | Fluid pressure control device with cover for preventing misoperation | Yukihiro Matarai, Makoto Ishikawa | 2001-04-17 |
| 6155287 | Fluid pressure control device with cover for preventing misoperation | Yukihiro Matarai, Makoto Ishikawa | 2000-12-05 |
| 6036938 | Potassium titanate substantially free of respirable fibers and method for producing the same | Hidefumi Konnai, Yoshio Suzuki | 2000-03-14 |
| 5269993 | Method of making agglomerate of whiskers or short fibers | Tadao Shimizu, Hidefumi Konnai | 1993-12-14 |
| 5185204 | Agglomerate of whiskers or short fibers | Tadao Shimizu, Hidefumi Konnai | 1993-02-09 |
| 4676964 | Process for purifying silica | Akira Seki, Yuuki Narita, Shunro Nagata | 1987-06-30 |