Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11269263 | Bischloroformate composition, bischloroformate composition production method, bischloroformate composition-containing solution, polycarbonate resin, polycarbonate resin production method, coating liquid, electrophotographic photoreceptor, and electrophotographic device | Kengo Hirata, Takaaki Hikosaka | 2022-03-08 |
| 10411212 | Organic electroluminescent element | Emiko Kambe, Masato Nakamura, Jun Endo, Masakazu Funahashi | 2019-09-10 |
| 9551946 | Polycarbonate copolymer, coating liquid using same, molded body, and electrophotographic photosensitive body | Kengo Hirata | 2017-01-24 |
| 9494883 | Electrophotographic photoreceptor and resin composition | Takaaki Hikosaka | 2016-11-15 |
| 9458291 | Polycarbonate copolymer | Kengo Hirata | 2016-10-04 |
| 9389524 | Polycarbonate copolymer, coating liquid using same, and electrophotographic photoreceptor | Kengo Hirata | 2016-07-12 |
| 9188887 | Polycarbonate copolymer, coating fluid using same, electrophotographic photoreceptor, and method for producing polycarbonate copolymer | Kengo Hirata, Takaaki Hikosaka | 2015-11-17 |
| 8927680 | Polycarbonate resin and coating solution containing same, and molded article produced by molding said coating solution | Kengo Hirata | 2015-01-06 |
| 8748015 | Indenofluorenedione derivative, material for organic electroluminescent element, and organic electroluminescent element | Yuichiro Kawamura, Jun Endo | 2014-06-10 |
| 8481177 | Material for organic electroluminescence device and organic electroluminescence device | — | 2013-07-09 |
| 8372527 | Material for organic electroluminescent element, and organic electroluminescent element | Yuichiro Kawamura | 2013-02-12 |
| 8299247 | Material for organic electroluminescence device and organic electroluminescence device | — | 2012-10-30 |
| 8288013 | Material for organic electroluminescence device and organic electroluminescence device | — | 2012-10-16 |
| 8268457 | Organic electroluminescent device and material for organic electroluminescent device | Yoshiaki Aoyama, Chishio Hosokawa, Shigeyuki Matsunami, Yasunori Kijima | 2012-09-18 |
| 8168327 | Imide derivative, material for organic electroluminescent device and organic electroluminescent device using the same | Hisayuki Kawamura, Chishio Hosokawa | 2012-05-01 |
| 8119828 | Material for an organic electroluminescence device and an organic electroluminescence device | — | 2012-02-21 |
| 8088901 | Azaindenofluorenedione derivative, material for organic electroluminescence device and organic electroluminescence device | Yuichiro Kawamura | 2012-01-03 |
| 8044390 | Material for organic electroluminescent device, organic electroluminescent device, and organic electroluminescent display | Chishio Hosokawa, Tadahiko Yoshinaga, Yasunori Kijima | 2011-10-25 |
| 7329718 | Aromatic polycarbonate resin, process for producing the same, optical-part molding material, and optical part | Hiroyuki Tamura, Yasushi Hamada | 2008-02-12 |
| 7112644 | Aromatic polycarbonate resin, process for producing the same, optical-part molding material, and optical part | Hiroyuki Tamura, Yasushi Hamada | 2006-09-26 |
| 5561017 | Polyester polymer, production thereof and electrophotographic photoreceptor using the same | Tomohiro Nagao, Shuji Sakamoto, Hideyuki Miyamoto | 1996-10-01 |
| 5521041 | Polycarbonate, method of preparing the same and electrophotographic photoreceptor produced by using the same | Hideyuki Miyamoto, Shuji Sakamoto, Tomohiro Nagao | 1996-05-28 |
| 5506331 | Polyester polymer, production thereof and electrophotographic photoreceptor using the same | Tomohiro Nagao, Shuji Sakamoto, Hideyuki Miyamoto | 1996-04-09 |