Issued Patents All Time
Showing 101–125 of 128 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815733 | Switching element and method of making the same | Haruo Tanaka, Takahito Oyamada, Hiroyuki Sasabe | 2004-11-09 |
| 6646780 | Sheet-like display medium including switching layer, and display element and device utilizing the same | Haruo Tanaka | 2003-11-11 |
| 6645645 | Phosphorescent organic light emitting devices | Marc A. Baldo, Stephen R. Forrest | 2003-11-11 |
| 6639357 | High efficiency transparent organic light emitting devices | Gautam Parthasarathy, Paul E. Burrows, Stephen R. Forrest | 2003-10-28 |
| 6631147 | Organic semiconductor laser device | Yoshio Taniguchi, Toshiki Koyama, Michifumi Nagawa | 2003-10-07 |
| 6573651 | Highly efficient OLEDs using doped ambipolar conductive molecular organic thin films | Marc A. Baldo, Stephen R. Forrest | 2003-06-03 |
| 6458475 | Organic light emitting diode having a blue phosphorescent molecule as an emitter | Stephen R. Forrest | 2002-10-01 |
| 6191249 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chiaki Tanaka, Nozomu Tamoto, Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada +3 more | 2001-02-20 |
| 6069224 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka, Nozomu Tamoto +4 more | 2000-05-30 |
| 6018014 | Aromatic polycarbonate and electrophotographic photosensitive medium using same | Kazukiyo Nagai, Masaomi Sasaki, Hiroshi Tamura, Tetsuro Suzuki, Tomoyuki Shimada +6 more | 2000-01-25 |
| 5942363 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chiaki Tanaka, Nozomu Tamoto, Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada +3 more | 1999-08-24 |
| 5932362 | Organic electroluminescent element | Kazukiyo Nagai, Nozomu Tamoto, Yohta Sakon | 1999-08-03 |
| 5910561 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka, Nozomu Tamoto +4 more | 1999-06-08 |
| 5846680 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka, Nozomu Tamoto +4 more | 1998-12-08 |
| 5840454 | Aromatic polycarbonate and electrophotographic photosensitive medium using same | Kazukiyo Nagai, Masaomi Sasaki, Hiroshi Tamura, Tetsuro Suzuki, Tomoyuki Shimada +6 more | 1998-11-24 |
| 5789128 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka, Nozomu Tamoto +4 more | 1998-08-04 |
| 5723243 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Masaomi Sasaki, Hiroshi Tamura, Tomoyuki Shimada, Tetsuro Suzuki, Chiaki Tanaka +6 more | 1998-03-03 |
| 5709959 | Organic thin film electroluminescence device | Kazukiyo Nagai, Nozomu Tamoto | 1998-01-20 |
| 5702833 | Organic electroluminescent element | Kazukiyo Nagai, Nozomu Tamoto, Yohta Sakon | 1997-12-30 |
| 5656401 | Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds | Masafumi Ohta, Yohta Sakon, Toshihiko Takahashi, Kazukiyo Nagai | 1997-08-12 |
| 5610309 | Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds | Masafumi Ohta, Yohta Sakon, Toshihiko Takahashi, Kazukiyo Nagai | 1997-03-11 |
| 5597925 | Method of producing oxadiazole compounds | Masafumi Ohta, Yohta Sakon, Toshihiko Takahashi, Kazukiyo Nagai | 1997-01-28 |
| 5420288 | Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds | Masafumi Ohta, Yohta Sakon, Toshihiko Takahashi, Kazukiyo Nagai | 1995-05-30 |
| 5382477 | Organic electroluminescent element and process for producing the same | Shogo SAITO, Tetsuo Tsutsui, Yuji Hamada | 1995-01-17 |
| 5085947 | Electroluminescence device | Shogo SAITO, Tetsuo Tsutui | 1992-02-04 |