Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6383709 | Positive resist composition comprising N-(n-octylsulfonyloxy) succinimide | Yasunori Uetani, Sang Ho Lee | 2002-05-07 |
| 6068962 | Positive resist composition | Yasunori Uetani, Hiroshi Moriuma | 2000-05-30 |
| 5965748 | Succinimide derivative, process for production and use thereof | Akira Kamabuchi, Naoki Takeyama, Haruyoshi Osaki | 1999-10-12 |
| 5726217 | Tetraphenol compounds and process for producing the same | Koji Ichikawa, Haruyoshi Osaki | 1998-03-10 |
| 5714620 | Polyhydric phenol compound and positive resist composition comprising the same | Yasunori Uetani, Hirotoshi Nakanishi, Ryotaro Hanawa, Ayako Ida | 1998-02-03 |
| 5587492 | Polyhydric phenol compound and positive resist composition comprising the same | Yasunori Uetani, Hirotoshi Nakanishi, Ryotaro Hanawa, Ayako Ida | 1996-12-24 |
| 5556995 | Process for the preparation of polyhydric phenol compounds | Naoko Suzuki, Hirotoshi Nakanishi | 1996-09-17 |
| 5436107 | Positive resist composition | Yasunori Uetani, Hirotoshi Nakanishi, Ryotaro Hanawa, Ayako Ida | 1995-07-25 |
| 5413895 | Positive resist composition comprising a quinone diazide sulfonic acid ester, a novolak resin and a polyphenol compound. | Koji Kuwana, Hirotoshi Nakanishi, Yasunori Uetani, Ayako Ida | 1995-05-09 |
| 5407778 | Positive resist composition | Yasunori Uetani, Hirotoshi Nakanishi | 1995-04-18 |
| 5407779 | Positive resist composition | Yasunori Uetani, Hirotoshi Nakanishi | 1995-04-18 |
| 5354644 | Photoresist compositions comprising styryl compound | Takanori Yamamoto, Shinji Konishi, Ryotaro Hanawa, Akihiro Furuta, Takeshi Hioki | 1994-10-11 |
| 5290656 | Resist composition, novel phenol compound and quinone diazide sulfonic acid ester of novel phenol compound | Yasunori Uetani, Makoto Hanabata, Hirotoshi Nakanishi, Koji Kuwana, Yukio Hanamoto +1 more | 1994-03-01 |
| 5283324 | Process for preparing radiation sensitive compound and positive resist composition | Koji Kuwana, Hirotoshi Nakanishi, Hiroshi Takagaki, Yasunori Doi, Yasunori Uetani +1 more | 1994-02-01 |
| 5220027 | Sulfone-containing azamethide compounds with a nitrogen-containing aromatic ring of nitrogen containing aliphatic | Takeshi Hioki, Kiyoteru Kojima | 1993-06-15 |
| 5218136 | Styryl compounds, process for preparing the same and photoresist compositions comprising the same | Takanori Yamamoto, Shinji Konishi, Ryotaro Hanawa, Akirhiro Furuta, Takeshi Hioki | 1993-06-08 |
| 5136054 | Sulfone-containing azamethine compounds | Takeshi Hioki, Kiyoteru Kojima | 1992-08-04 |
| 5080997 | Process for preparing a positive resist composition by mixing the condensation product of a quinone diazide sulfonyl halogenide and a phenol with a resin solution without isolating the condensation product from the crude mixture | Takeshi Hioki, Koji Kuwana, Hirotoshi Nakanishi, Yasunori Uetani, Yukio Hanamoto +1 more | 1992-01-14 |
| 5061796 | Azamethine compounds | Takeshi Hioki, Kiyoteru Kojima | 1991-10-29 |
| 5028708 | Azamethinyl quinoline derivatives | Takeshi Hioki, Kiyoteru Kojima | 1991-07-02 |