Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887134 | Semiconductor device having a semiconductor region in which either the conduction or valence band remains flat while bandgap is continuously graded | Yasushi Fujioka | 1989-12-12 |
| 4845001 | Light receiving member for use in electrophotography with a surface layer comprising non-single-crystal material containing tetrahedrally bonded boron nitride | Tetsuya Takei, Tatsuyuki Aoike, Yasushi Fujioka | 1989-07-04 |
| 4824749 | Light receiving member for use in electrophotography and process for the production thereof | Shigeru Shirai, Takayoshi Arai, Minoru Kato, Yasushi Fujioka | 1989-04-25 |
| 4818655 | Electrophotographic light receiving member with surface layer of a-(Si.sub.x C.sub.1-x).sub.y :H.sub.1-y wherein x is 0.1-0.99999 and y is 0.3-0.59 | Shigeru Shirai, Takayoshi Arai, Minoru Kato, Yasushi Fujioka | 1989-04-04 |
| 4804604 | Light receiving member for use in electrophotography | Shigeru Shirai, Takayoshi Arai, Minoru Kato, Yasushi Fujioka | 1989-02-14 |
| 4803093 | Process for preparing a functional deposited film | Shunichi Ishihara, Shunri Oda, Isamu Shimizu | 1989-02-07 |
| 4798167 | Apparatus for preparing a photoelectromotive force member having a concentric triplicate conduit for generating active species and precursor | Shunichi Ishihara, Shunri Oda, Isamu Shimizu | 1989-01-17 |
| 4795691 | Layered amorphous silicon photoconductor with surface layer having specific refractive index properties | Tetsuya Takei, Tatsuyuki Aoike, Minoru Kato | 1989-01-03 |