Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9647278 | Metal separator for fuel cells and manufacturing method thereof | Masao Utsunomiya, Natsuki Anzai | 2017-05-09 |
| 9559376 | Fuel cell with an electrolyte membrane and gas diffusion layers | Masaru Oda, Seiji Sugiura, Kenichi Tanaka, Hiroshi Sohma | 2017-01-31 |
| 8980501 | Fuel cell metal separator and noble metal coating method therefor | Masao Utsunomiya, Toshiki Kawamura | 2015-03-17 |
| 8313680 | Method of producing fuel cell | Takaaki Mitsuoka, Akihiro Nonogaki, Tetsuhiro Takehara, Masaru Oda, Seiji Sugiura +1 more | 2012-11-20 |
| 8197984 | Fuel cell stack | Narutoshi Sugita, Takashi Kosaka, Ayumu Ishizuka, Ken Takahashi, Hiroshi Morikawa | 2012-06-12 |
| 8153288 | Fuel cell and fuel cell stack | Narutoshi Sugita, Shuhei Goto, Yosuke Fujii | 2012-04-10 |
| 8110316 | Fuel cell | Masaru Oda, Takashi Kosaka, Norimasa Kawagoe, Narutoshi Sugita, Masaaki Sakano +1 more | 2012-02-07 |
| 7883814 | Fuel cell separator with integral seal member | Yasuhiro Watanabe, Masaaki Sakano, Shuji Sato, Shigeru Inai, Ken Takahashi | 2011-02-08 |
| 7838171 | Metal separator for fuel cell and its production method | Makoto Tsuji, Masao Utsunomiya | 2010-11-23 |
| 7507490 | Metal separator for fuel cell and its production method | Makoto Tsuji, Masao Utsunomiya, Koji Kotani | 2009-03-24 |
| 7325432 | Method for manufacturing fuel cell metallic separator | Makoto Tsuji, Masao Utsunomiya, Koji Kotani | 2008-02-05 |
| 7214440 | Metallic separator for fuel cell and production method for the same | Masao Utsunomiya, Makoto Tsuji, Takashi Kuwayama | 2007-05-08 |
| 7166386 | Separator for fuel cell and method for preparation thereof | Makoto Tsuji, Masao Utsunomiya | 2007-01-23 |
| 7147956 | Fuel cell and separator therefor | Makoto Tsuji, Masao Utsunomiya | 2006-12-12 |
| 7138201 | Liquid thermosetting sealing agent for polymer electrode membrane fuel cell, single cell formed with sealing agent, its process, and process for regenerating polymer electrode membrane fuel cell | Masajirou Inoue, Hiroyuki Tanaka, Nobuaki Kimura | 2006-11-21 |
| 7049022 | Metal separator for fuel cell and production method therefor | Makoto Tsuji, Masao Utsunomiya | 2006-05-23 |
| 7014938 | Separator for fuel cell | Makoto Tsuji, Masao Utsunomiya | 2006-03-21 |
| 7001683 | Separator for fuel cell and method for producing the same | Makoto Tsuji, Masao Utsunomiya | 2006-02-21 |
| 6953636 | Press separator for fuel cell made of stainless steel press formed in contiguous corrugations | Makoto Tsuji, Masao Utsunomiya | 2005-10-11 |
| 6884363 | Method of surface treatment for stainless steel product for fuel cell | Makoto Tsuji, Masao Utsunomiya | 2005-04-26 |
| 6861172 | Current-collecting structure in fuel cell system | Masao Utsunomiya, Makoto Tsuji | 2005-03-01 |
| 6858339 | Separator for fuel cell and fuel cell | Masao Utsunomiya, Makoto Tsuji | 2005-02-22 |
| 6840303 | Process for continuously casting light alloy and apparatus for continuously casting light alloy | Nobuhiro Saito, Takeyoshi Nakamura, Takashi Idegomori, Kiyonobu Mizoue, Yoshiyuki Fujikawa | 2005-01-11 |
| 6435263 | Agitated continuous casting process for aluminum alloy | Takeyoshi Nakamura, Nobuhiro Saito, Takashi Idegomori, Kiyonobu Mizoue | 2002-08-20 |
| 6397925 | Agitated continuous casting apparatus | Nobuhiro Saito, Takashi Idegomori, Takeyoshi Nakamura, Kiyonobu Mizoue | 2002-06-04 |