Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8124301 | Gradated photomask and its fabrication process | Shu Shimada, Yuuichi Yoshida, Shiho Sasaki, Tsuyoshi Amano, Kimio Ito +2 more | 2012-02-28 |
| 6869736 | Halftone phase shift photomask and blank for halftone phase shift photomask | Hiro-o Nakagawa, Toshiaki Motonaga, Yoshinori Kinase, Satoshi Yusa, Shigeki Sumida +3 more | 2005-03-22 |
| 6780547 | Halftone phase shifting photomask and blanks for halftone phase shifting photomask therefor and a method for forming pattern by using the halftone phase shifting photomask | Toshiaki Motonaga, Norihito Ito, Chiaki Hatsuta, Naoya Hayashi, Toshio Onodera +3 more | 2004-08-24 |
| 6764792 | Halftone phase shift photomask and blanks for halftone phase shift photomask for producing it | Yoshinori Kinase, Takafumi Okamura, Hiroshi Mohri, Toshifumi Yokoyama, Haruo Kokubo | 2004-07-20 |
| 6740455 | Photomask | Kenji Noguchi, Toshiaki Motonaga, Hiro-o Nakagawa, Yasutaka Morikawa, Toshifumi Yokoyama +3 more | 2004-05-25 |
| 6599667 | Halftone phase shift photomask and blank for halftone phase shift photomask | Satoshi Yusa, Toshifumi Yokoyama, Shigeki Sumida, Toshiaki Motonaga, Yoshinori Kinase +3 more | 2003-07-29 |
| 6458496 | Blank for halftone phase shift photomask and halftone phase shift photomask | Toshiaki Motonaga, Toshifumi Yokoyama, Takafumi Okamura, Yoshinori Kinase, Hiroshi Mohri +4 more | 2002-10-01 |
| 5721075 | Blanks for halftone phase shift photomasks, halftone phase shift photomasks, and methods for fabricating them | Keiji Hashimoto, Hiroshi Mohri, Masahiro Takahashi, Hiroyuki Miyashita, Yukio Iimura | 1998-02-24 |
| 5614335 | Blanks for halftone phase shift photomasks, halftone phase shift photomasks, and methods for fabricating them | Keiji Hashimoto, Hiroshi Mohri, Masahiro Takahashi, Hiroyuki Miyashita, Yukio Iimura | 1997-03-25 |
| 5592317 | Chromium blanks for forming black matrix-screen and color filter for liquid crystal display | Yukio Iimura, Masahiro Takahashi, Takashi Nishimoto, Hiroyuki Matsui, Masanobu Fujita | 1997-01-07 |
| 5538816 | Halftone phase shift photomask, halftone phase shift photomask blank, and methods of producing the same | Keiji Hashimoto, Hiroshi Mohri, Masahiro Takahashi, Hiroyuki Miyashita, Yukio Iimura | 1996-07-23 |
| 5061034 | Permanent connector for optical fibers | Fumiaki Tamura | 1991-10-29 |
| 5024505 | Array splice for ribbon-like multi-core optical fibers | Fumiaki Tamura | 1991-06-18 |
| 4988161 | Optical fiber fixing element and method of manufacturing same | Fumiaki Tamura | 1991-01-29 |