Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8707738 | Glass-melting furnace, process for producing molten glass, apparatus for producing glass products and process for producing glass products | Osamu Sakamoto, Chikao Tanaka, Satoru Ohkawa | 2014-04-29 |
| 8573007 | Process for producing molten glass, glass-melting furnace, process for producing glass products and apparatus for producing glass products | Osamu Sakamoto, Chikao Tanaka, Satoru Ohkawa, Takahiro Murakami | 2013-11-05 |
| 8544298 | Glass-melting furnace, process for producing molten glass, apparatus for producing glass products and process for producing glass products | Osamu Sakamoto, Chikao Tanaka, Satoru Ohkawa | 2013-10-01 |
| 8102092 | Split cores for motor stator, motor stator, permanent magnet type synchronous motor and punching method by split core punching die | Kenji Tomohara, Mitsuhiro Koga, Makoto Matsumoto, Hiroshi Koga, Shinichi Sakamoto | 2012-01-24 |
| 7670975 | Alkali free glass and process for its production | Kazuhiro Suzuki, Manabu Nishizawa, Junichiro Kase, Kei Maeda | 2010-03-02 |
| 7365036 | Crystallized glass spacer for field emission display and method its production | Kei Maeda | 2008-04-29 |
| 6714648 | IC card equipped with elliptic curve encryption processing facility | Kazuo Takaragi | 2004-03-30 |
| 6537938 | Glass for anodic bonding | — | 2003-03-25 |
| 6477254 | Network system using a threshold secret sharing method | Kazuo Takaragi | 2002-11-05 |
| 6466668 | IC card equipped with elliptical curve encryption processing facility | Kazuo Takaragi | 2002-10-15 |
| RE37762 | Scanning exposure apparatus and exposure method | Kei Nara, Masami Seki, Masamitsu Yanagihara, Tomohide Hamada | 2002-06-25 |
| 6380427 | Process for purification of (meth)acrylic acid | Akira Ogawa, Yasutaka Nakashima, Yoshiaki KOBAYASHI, Mikiyoshi Araki | 2002-04-30 |
| RE37361 | Scanning type exposure apparatus and exposure method | Masamitsu Yanagihara, Susumu Mori, Tsuyoshi Naraki, Masami Seki, Tsuyohsi Narabe +1 more | 2001-09-11 |
| 6189032 | Client-server system for controlling access rights to certain services by a user of a client terminal | Seiichi Susaki, Hisashi Umeki, Katsuyuki Umezawa, Kazuo Matsunaga, Makoto Kitagawa | 2001-02-13 |
| 6141082 | Alignment method, exposure method, and exposure apparatus | Kei Nara, Hideki Koitabashi | 2000-10-31 |
| 5999244 | Projection exposure apparatus, method for correcting positional discrepancy of projected image, and method for determining image formation characteristic of projection optical system | Masamitsu Yanagihara, Kei Hara, Hideki Koitabashi, Yoichi Hamashima, Hiroshi Kitano +1 more | 1999-12-07 |
| 5888917 | Glass substrate for plasma display panel | Toshiyasu Kawaguchi | 1999-03-30 |
| 5882371 | Method for heat-treating a glass substrate | Manabu Nishizawa, Kei Maeda | 1999-03-16 |
| 5849441 | Alignment method utilizing plurality of marks, discriminable from each other, capable of effecting alignment individually | Kei Nara, Hideki Koitabashi | 1998-12-15 |
| 5798822 | Exposure apparatus | Hiroshi Shirasu, Kazuaki Saiki, Tsuyoshi Narabe | 1998-08-25 |
| 5793472 | Exposure method using reference marks on both the mask and the substrate and capable of providing high alignment precision even after multiple exposures | Kazuhiko Hori, Kei Nara | 1998-08-11 |
| 5777722 | Scanning exposure apparatus and method | Tsuyoshi Narabe, Kei Nara, Tomohide Hamada, Kazuaki Saiki, Hideji Goto +1 more | 1998-07-07 |
| 5760881 | Exposure apparatus with light shielding portion for plotosensitive elements | Kei Nara, Hiroshi Shirasu, Tsuyoshi Narabe | 1998-06-02 |
| 5657130 | Exposure apparatus and method | Hiroshi Shirasu, Kazuaki Saiki, Susumu Mori | 1997-08-12 |
| 5625436 | Scanning type exposure apparatus and exposure method | Masamitsu Yanagihara, Susumu Mori, Tsuyoshi Naraki, Masami Seki, Tsuyoshi Narabe +1 more | 1997-04-29 |