Issued Patents All Time
Showing 1–25 of 163 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10011684 | Arylamine polymer, method for producing the same, ink composition, film, electronic device, organic thin-film transistor, and display device | Toshiya Sagisaka, Takashi Okada, Masafumi Torii, Takuji Kato, Tamotsu Aruga +3 more | 2018-07-03 |
| 9688706 | Electrochromic compound, electrochromic composition, display element, and dimming element | Mamiko Inoue, Tohru Yashiro, Keiichiroh Yutani, Yoshinori Okada, Sukchan Kim +9 more | 2017-06-27 |
| 9263682 | Light emitting device and display unit | Shigeyuki Harada, Mikiko Abe | 2016-02-16 |
| 9206202 | Carbazole derivative and semiconductor nanocrystal | Shigeyuki Harada | 2015-12-08 |
| 8765903 | Carbazole polymer and method of manufacturing same | Shigeyuki Harada, Takashi Okada, Toshiya Sagisaka | 2014-07-01 |
| 8192917 | Material for multiphoton fluorescence microscope and multiphoton fluorescence microscope | Tatsuya Tomura, Tsutomu Sato, Takeshi Miki, Mikiko Takada | 2012-06-05 |
| 7893192 | Pi-conjugated polymer | Masafumi Torii, Takashi Okada, Toshiya Sagisaka | 2011-02-22 |
| 7745988 | 3, 6-diphenylcarbazole compound and organic electroluminescent device | Masafumi Torii, Toshiya Sagisaka, Takashi Okada, Shinichi Kawamura, Chihaya Adachi +2 more | 2010-06-29 |
| 7718760 | π-Conjugated polymer and manufacturing method thereof | Toshiya Sagisaka, Masafumi Torii, Takashi Okada, Shinichi Kawamura | 2010-05-18 |
| 7550554 | Aryl amine polymer, thin film transistor using the new aryl amine polymer, and method of manufacturing the thin film transistor | Toshiya Sagisaka, Masafumi Torii, Shinichi Kawamura, Takashi Okada, Yoshinobu Nakayama +4 more | 2009-06-23 |
| 7452640 | Electrophotographic photoconductor for liquid development, image forming apparatus having the same, and image forming method | Masayuki Shoshi, Akio Kojima | 2008-11-18 |
| 7348113 | Electrophotographic photoconductor comprising a polycarbonate resin having a dihydroxy diphenyl ether unit | Masayuki Shoshi, Yuko KOMAI, Hiroshi Tamura | 2008-03-25 |
| 7175958 | Electrophotographic photoconductor, process for forming an image, image forming apparatus and process cartridge for the same | Masayuki Shoshi, Yuuko Komai, Hongguo Li | 2007-02-13 |
| 7166689 | Aryl amine polymer, thin film transistor using the aryl amine polymer, and method of manufacturing the thin film transistor | Toshiya Sagisaka, Masafumi Torii, Shinichi Kawamura, Takashi Okada, Yoshinobu Nakayama +4 more | 2007-01-23 |
| 7071285 | Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus | Shinichi Kawamura, Kazukiyo Nagai, Kohkoku Ri, Susumu Suzuka, Katsuhiro Morooka | 2006-07-04 |
| 6939651 | Electrophotographic photoconductor, and process cartridge and electrophotographic apparatus using the same | Hongguo Li, Kazukiyo Nagai, Shinichi Kawamura, Yasuo Suzuki, Nozomu Tamoto +1 more | 2005-09-06 |
| 6919419 | AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATION OF THE POLYCARBONATE RESIN, ELECTRO-PHOTOGRAPHIC PHOTOCONDUCTOR, ELECTRO-PHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS, AND PROCESS CARTRIDGE | Kohkoku Ri, Kazukiyo Nagai, Shinichi Kawamura, Susumu Suzuka, Katsuhiro Morooka | 2005-07-19 |
| 6849367 | Electrophotographic photoconductor, process for forming an image, image forming apparatus and a process cartridge for the same | Masayuki Shoshi, Yuuko Komai, Hongguo Li | 2005-02-01 |
| 6790571 | Aromatic polycarbonate resin, electrophotographic photoconductor, process cartridge, and electrophotographic image forming method and apparatus | Shinichi Kawamura, Kazukiyo Nagai, Kohkoku Ri, Susumu Suzuka, Katsuhiro Morooka | 2004-09-14 |
| 6664361 | Diphenol compound, aromatic polycarbonate and electrophotoconductive photoconductor | Shinichi Kawamura, Kazukiyo Nagai, Kohkoku Ri, Katsuhiro Morooka, Susumu Suzuka | 2003-12-16 |
| 6576386 | AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATION OF THE POLYCARBONATE RESIN, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS, AND PROCESS CARTRIDGE | Kohkoku Ri, Kazukiyo Nagai, Shinichi Kawamura, Susumu Suzuka, Katsuhiro Morooka | 2003-06-10 |
| 6486293 | Electrophotographic photoconductor and method of producing aromatic polycarbonate resin for use in the photoconductor | Kohkoku Ri, Kazukiyo Nagai, Shinichi Kawamura, Susumu Suzuka, Katsuhiro Morooka | 2002-11-26 |
| 6444387 | Image bearing material, electrophotographic photoreceptor using the image bearing material, and image forming apparatus using the photoreceptor | Kohkoku Ri, Kazukiyo Nagai, Shinichi Kawamura | 2002-09-03 |
| 6316577 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Tomoyuki Shimada, Masafumi Ohta, Akihiro Imai, Mitsutoshi Anzai, Tamotsu Aruga +2 more | 2001-11-13 |
| 6303736 | Electrophotographic photoconductor and aromatic polycarbonate resin for use in the photoconductor | Shinichi Kawamura, Kazukiyo Nagai, Chiaki Tanaka, Kohkoku Ri, Susumu Suzuka +1 more | 2001-10-16 |