Issued Patents All Time
Showing 51–75 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4913528 | Optical prism, and projection television set using same | — | 1990-04-03 |
| 4838665 | Temperature-compensated lens system | Takayuki Yoshioka | 1989-06-13 |
| 4780640 | Projection television receiver with liquid-cooled lens | — | 1988-10-25 |
| 4777532 | Projection apparatus for a projection television receiver | — | 1988-10-11 |
| 4761063 | Projection lens system | Takayuki Yoshioka | 1988-08-02 |
| 4743489 | Multilayer wiring substrate | — | 1988-05-10 |
| 4737678 | Cooling system for projection television receiver | — | 1988-04-12 |
| 4730211 | Projection-type color television receiver wherein the center lines of right and left projection lenses intersect a display screen at points which are offset from a point at which the center line of a center projection lens intersects the display screen | — | 1988-03-08 |
| 4725755 | Projection television receiver with liquid-cooled lens | — | 1988-02-16 |
| 4666691 | Process for manufacturing uranium oxide powder | — | 1987-05-19 |
| 4578710 | Lens system for projection television | — | 1986-03-25 |
| 4510515 | Epitaxial wafer of compound semiconductor display device | Masaki Kajita, Tomio Nakaya, Hisanori Fujita | 1985-04-09 |
| 4469899 | Process for producing phloroglucin | Makoto Nakamura, Tsutomu Chiyoda | 1984-09-04 |
| 4463197 | Method for purifying phloroglucin | Makoto Nakamura, Tsutomu Chiyoda | 1984-07-31 |
| 4463199 | Method for producing phloroglucin | Tsutomu Chiyoda, Makoto Nakamura | 1984-07-31 |
| 4455440 | Method for producing 1,3,5-triisopropylbenzene trihydroperoxides | Tsutomu Chiyoda, Makoto Nakamura | 1984-06-19 |
| 4398047 | 2-Substituted-4,6-di-t-butylresorcinol | Yukihisa Takisawa | 1983-08-09 |
| 4378259 | Method for producing mixed crystal wafer using special temperature control for preliminary gradient and constant layer deposition suitable for fabricating light-emitting diode | Hisanori Fujita | 1983-03-29 |
| 4352941 | Process for purification of phenylhydrazine | Yuji Ueda, Hiroshige Tomita | 1982-10-05 |
| 4349513 | Process for recovering uranium and/or thorium from a liquid containing uranium and/or thorium | Shoji Ishiwata, Yasuo Kuroda, Shoichi Tanaka, Tsuneo Watanabe | 1982-09-14 |
| 4338286 | Process for recovering uranium and/or thorium from a liquid containing uranium and/or thorium | Eiichiro Nakai, Hiroshi Kojima, Shoichi Tanaka, Toshiyuki Kai | 1982-07-06 |
| 4337370 | Process for the preparation of resorcinol derivatives | Yukihisa Takisawa | 1982-06-29 |
| 4252576 | Epitaxial wafer for use in production of light emitting diode | Hisanori Fujita | 1981-02-24 |
| 4218270 | Method of fabricating electroluminescent element utilizing multi-stage epitaxial deposition and substrate removal techniques | Hisanori Fujita | 1980-08-19 |
| 4216484 | Method of manufacturing electroluminescent compound semiconductor wafer | Hisanori Fujita | 1980-08-05 |