Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5766492 | Method of metal-plating electrode portions of printed-wiring board | Toshiya Sadahisa, Johji Nakamoto, Yoshinobu Kurosaki | 1998-06-16 |
| 5683857 | Method for forming resist pattern by irradiating a resist coating on a substrate, contacting the resist with organic solvent vapor and removing the irradiated portion | Masamitsu Shirai, Masahiro Tsunooka | 1997-11-04 |
| 5474666 | Method of treating an electrodeposited photosensitive resist to reduce water spotting | Mamoru Seio, Kazuyuki Suga | 1995-12-12 |
| 5278029 | Method for forming a resist pattern | Masamitsu Shirai, Masahiro Tsunooka | 1994-01-11 |
| 5213946 | Positive type, photosensitive resinous composition | Masamitsu Shirai, Masahiro Tsunooka, Katsukiyo Ishikawa | 1993-05-25 |
| 5166036 | Electrodeposition coating composition and image-forming method using the same | Mamoru Seio, Takeshi Ikeda, Katsukiyo Ishikawa | 1992-11-24 |
| 5055374 | Electrodeposition coating composition containing an acrylic resin and a quinnone diazide group bearing resin | Mamoru Seio, Takeshi Ikeda, Katsukiyo Ishikawa | 1991-10-08 |
| 4999274 | Positive type photosensitive resinous composition with 1,2 quinone diazide sulfonyl unit | Mamoru Seio, Katsukiyo Ishikawa | 1991-03-12 |
| 4946757 | Positive type 1,2 quinone diazide containing photosensitive resinous composition with acrylic copolymer resin | Mamoru Seio, Katsukiyo Ishikawa | 1990-08-07 |
| RE33108 | Method for preparing a printed circuit board | Katsukiyo Ishikawa, Mamoru Seio | 1989-11-07 |
| 4869995 | Positive type photosensitive resinous composition | Masamitsu Shirai, Masahiro Tsunooka, Makoto Tanaka, Katsukiyo Ishikawa | 1989-09-26 |
| 4673458 | Method for preparing a printed circuit board | Katsukiyo Ishikawa, Mamoru Seio | 1987-06-16 |
| 4671854 | Method for preparing a printed circuit board with solder plated circuit and through-holes | Katsukiyo Ishikawa, Mamoru Seio | 1987-06-09 |
| 4533683 | Rust preventive cationic electrocoating | Ryoichi Murakami, Yoshiyuki Uyeda, Tetsuo Yanagihara | 1985-08-06 |