Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11215592 | Method and device for isolating and analyzing target substance in solution | Fumihiro Yoshinaga, Atsumi Koyanagi, Shunichi Hatamoto, Yozo Ishihara, Makiko Kumagai +1 more | 2022-01-04 |
| 10947886 | Catalyst state estimation apparatus, catalyst state estimation method with information processing apparatus, and non-transitory recording medium in which program is stored | Takato Ikedo, Matsuei Ueda, Harufumi Muto, Kohei Mori, Hitoshi Hosaki +2 more | 2021-03-16 |
| 10557450 | Internal combustion engine | Ryou Masuda, Takayuki Fuyuto | 2020-02-11 |
| 9985216 | Indenoindole derivative and organic electroluminescent element | Shigetaka Numazawa, Norimasa Yokoyama, Si-In KIM, Shigeru Kusano | 2018-05-29 |
| 9905770 | Compound having acridan ring structure, and organic electroluminescent device | Norimasa Yokoyama, Naoaki Kabasawa, Eiji Takahashi | 2018-02-27 |
| 9882136 | Organic electroluminescent device | Shuichi Hayashi, Motonori Tsuji, Yoshikazu Aoki | 2018-01-30 |
| 9871210 | Naphthotriazole derivatives and organic electroluminescence devices | Shigetaka Numazawa, Mari Toriya, Shingo Ozawa, Shigeru Kusano | 2018-01-16 |
| 9842999 | Benzotriazole derivative and an organic electroluminescent device | Shigetaka Numazawa, Kanae OTSUKA, Shigeru Kusano | 2017-12-12 |
| 9837620 | Benzopyridoindole derivative and organic electroluminescent element | Kouki KASE, Shigeru Kusano, Teruaki Koizumi | 2017-12-05 |
| 9818949 | Compound having acridan ring structure, and organic electroluminescent device | Norimasa Yokoyama, Naoaki Kabasawa, Eiji Takahashi | 2017-11-14 |
| 9732036 | Compound having carbazole ring structure, and organic electroluminescent device | Norimasa Yokoyama, Kazunori Togashi, Shigeru Kusano | 2017-08-15 |
| 9705092 | Phosphorescent organic light emitting devices combined with hole transport material having high operating stability | Hitoshi Yamamoto, Michael S. Weaver, Norimasa Yokoyama, Naoaki Kabasawa | 2017-07-11 |
| 9705099 | Phosphorescent organic light emitting devices having a hole transporting cohost material in the emissive region | Vadim Adamovich, Hitoshi Yamamoto, Michael S. Weaver, Norimasa Yokoyama, Naoaki Kabasawa | 2017-07-11 |
| 9564600 | Compound having an indolocarbazole ring structure and organic electroluminescent device | Norimasa Yokoyama, Sawa Izumi, Hiroshi Ookuma, Shuichi Hayashi | 2017-02-07 |
| 9306174 | Organic electroluminescent device | Norimasa Yokoyama, Kazunori Togashi, Shigeru Kusano, Eiji Takahashi | 2016-04-05 |
| 9306175 | Organic electroluminescent device | Norimasa Yokoyama, Kazunori Togashi, Shigeru Kusano, Eiji Takahashi | 2016-04-05 |
| 9238624 | Method of producing aromatic amino compounds | Norimasa Yokoyama, Kazunori Togashi | 2016-01-19 |
| 9196837 | Compound having indenocarbazole ring structure, and organic electroluminescent device | Norimasa Yokoyama, Kazunori Togashi, Kouki KASE, Eiji Takahashi | 2015-11-24 |
| 9196839 | Compound having triphenylamine structure, and organic electroluminescent device | Norimasa Yokoyama, Kouki KASE, Shingo Ozawa, Shigeru Kusano | 2015-11-24 |
| 8852759 | Compound having acridan ring structure, and organic electroluminescent device | Norimasa Yokoyama, Naoaki Kabasawa, Eiji Takahashi | 2014-10-07 |
| 8735626 | Method of producing aromatic amino compounds | Norimasa Yokoyama, Kazunori Togashi | 2014-05-27 |
| 8642189 | Substituted bipyridyl compound and organic electroluminescent device | Norimasa Yokoyama, Shuichi Hayashi, Yoshio Taniguchi, Musubu Ichikawa | 2014-02-04 |
| 8252431 | Compound wherein substituted bipyridyl group is connected with pyridoindole ring structure through phenylene group, and organic electroluminescent device | Norimasa Yokoyama, Shuichi Hayashi, Shigeru Kusano | 2012-08-28 |
| 7977671 | Compound having oxadiazole ring structure substituted with pyridyl group and organic electroluminescence device | Tetsuzo Miki, Shuichi Hayashi, Yoshio Taniguchi, Musubu Ichikawa | 2011-07-12 |
| 7812341 | Compound having oxadiazole ring structure substituted with pyridyl group, and organic electroluminescent device | Tetsuzo Miki, Shuichi Hayashi, Yoshio Taniguchi, Musubu Ichikawa | 2010-10-12 |