Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7871712 | Drying agent and field light emission device using the same | Shigeru Hieda, Satoshi Tanaka | 2011-01-18 |
| 7648765 | Dispersion of carbon nanoparticles and core-shell type carbon nanoparticles, and method of preparing the same | Fumiaki Kataoka, Shigeo Itoh | 2010-01-19 |
| 7622199 | Water-absorbing agent for organic EL device and organic EL device | Satoshi Tanaka, Shigeru Hieda, Yoshihisa Tsuruoka | 2009-11-24 |
| 7394091 | Composite nano-particle and method for preparing the same | Tetsuhiko Isobe, Yasushi Hattori, Shigeo Itoh | 2008-07-01 |
| 7030258 | Water-capturing agent and organic EL device | Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka | 2006-04-18 |
| 6896980 | Water-scavenging agent for an organic electroluminescent device and organic electroluminescent device comprising same | Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka | 2005-05-24 |
| 6887592 | Organic EL element | Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka | 2005-05-03 |
| 6790381 | Drying agent | Yoshihisa Tsuruoka, Satoshi Tanaka, Shigeru Hieda | 2004-09-14 |
| 6656609 | Organic EL element | Shigeru Hieda, Yuji Saito | 2003-12-02 |
| 6410166 | Organic electroluminescence device doping device and organic electroluminescence device | Yoshihisa Tsuruoka, Satoshi Tanaka, Toshio Miyauchi | 2002-06-25 |
| 6288486 | Multi-color organic electroluminescence device with overlapping luminous layers | Yoshihisa Tsuruoka, Satoshi Tanaka, Toshio Miyauchi, Tatsuo Fukuda | 2001-09-11 |
| 6048631 | Organic electroluminescence device and organic electroluminescence device material | Yoshihisa Tsuruoka, Satoshi Tanaka, Toshio Miyauchi | 2000-04-11 |
| 5998926 | Organic electroluminescence device having apertured insulation layers and method for manufacturing the same | Yoshihisa Tsuruoka, Toshio Miyauchi | 1999-12-07 |
| 5898276 | Organic electroluminescent element with uniform display segment voltages using the line resistances | Yoshihisa Tsuruoka, Satoshi Tanaka, Toshio Miyauchi | 1999-04-27 |
| 5804917 | Organic electroluminescent display device and method for manufacturing same | Yoshihisa Tsuruoka, Toshio Miyauchi, Shigeru Hieda | 1998-09-08 |
| 5177330 | Key board switch | Tatsuo Yamaura, Masao Miyagishima, Takao Kishino | 1993-01-05 |
| 4985225 | Process for producing aluminum nitride powders | Noboru Hashimoto, Yasushi Sawada, Hiroyoshi Yoden, Shigehito Deki | 1991-01-15 |
| 4680231 | Low-velocity electron excited phosphor | Tatsuo Yamaura | 1987-07-14 |
| 4502032 | Ebullition cooled transformer | Minoru Kimura | 1985-02-26 |