Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7866199 | Method for manufacturing seamless steel pipe made of high Cr-high Ni alloy steel | Naoya Hirase, Tomio Yamakawa | 2011-01-11 |
| 7799242 | Liquid crystalline composition, optically anisotropic film, optical film, and polarizer and liquid-crystal display device using them | Hirokazu Nishimura, Shuji Kanayama, Yasutomo Goto | 2010-09-21 |
| 7757528 | Method of manufacturing seamless pipe or tube | Tomio Yamakawa | 2010-07-20 |
| 7739892 | Method of manufacturing seamless pipes | Tomio Yamakawa | 2010-06-22 |
| 7727594 | Method for drying coated film, and apparatus therefor | Kyohei Yoshimura, Nobuo Hamamoto | 2010-06-01 |
| 7722921 | Anti-reflection film producing method and apparatus | Hirokazu Nishimura, Makoto Satoh | 2010-05-25 |
| 7722930 | Method and apparatus for drying coated film | Nobuo Hamamoto, Yasunaga Harabe | 2010-05-25 |
| 7578157 | Piercing-rolling method and piercing-rolling apparatus for seamless tubes | Tomio Yamakawa | 2009-08-25 |
| 7536888 | Process for manufacturing a seamless tube | Tomio Yamakawa | 2009-05-26 |
| 7530248 | Plug for use in piercing mill | Tomio Yamakawa | 2009-05-12 |
| 7506526 | Seamless tube piercing/rolling plug, and seamless tube producing method using same | Tomio Yamakawa | 2009-03-24 |
| 7428049 | Apparatus and method for inspecting film defect | — | 2008-09-23 |
| 7383710 | Seamless tube piercing/rolling apparatus, and seamless tube producing therewith | Tomio Yamakawa | 2008-06-10 |
| 7260966 | Tube shell for manufacturing a seamless steel pipe and a method for its manufacture | Tomio Yamakawa, Hiroyuki Semba, Hirofumi Hori, Tsuneo Kondo | 2007-08-28 |
| 7100410 | Method of manufacturing seamless tube | Tomio Yamakawa | 2006-09-05 |
| 6988387 | Making method for seamless metallic tube | Hirotsugu Nakaike, Tomio Yamakawa, Toshiro Anraku | 2006-01-24 |
| 6777895 | Vibrating linear actuator | Shinichiro Kawano, Noriyoshi Nishiyama, Toshiyuki Iwahori | 2004-08-17 |
| 6650410 | Apparatus, system and method for checking film for defects | — | 2003-11-18 |
| 5713234 | Piercing-rolling method and piercing-rolling apparatus for seamless tubes | Tomio Yamakawa | 1998-02-03 |
| 5705632 | Process for the preparation of cellulose acetate film | Masahiko Murayama, Hidekazu Yamazaki, Tohru Shibata, Shu Shimamoto, Hiroyuki Takemoto +1 more | 1998-01-06 |
| 5663310 | Cellulose acetate solution and process for the preparation of the same | Masahiko Murayama, Hidekazu Yamazaki, Tohru Shibata, Shu Shimamoto, Hiroyuki Takemoto +1 more | 1997-09-02 |
| 5636542 | Piercing-rolling method and piercing/rolling apparatus for seamless steel tube | Tomio Yamakawa, Chihiro Hayashi | 1997-06-10 |
| 5102590 | Process for hollow fiber membrane for artificial lung | Kazuaki Takahara, Ken Tatebe, Manabu Yamazaki | 1992-04-07 |
| 4770852 | Hollow fiber membrane for an artificial lung | Kazuaki Takahara, Ken Tatebe, Manabu Yamazaki | 1988-09-13 |
| 4708800 | Hollow fiber membrane and method for manufacture thereof | Toshiji Ichikawa, Kazuaki Takahara, Yukio Seita, Makoto Emi | 1987-11-24 |