Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11215091 | Hollow engine valve and manufacturing method therefor | Hidenobu Nishio, Kenichiro Hirao | 2022-01-04 |
| 10526933 | Hollow engine valve and manufacturing method therefor | Hidenobu Nishio, Kenichiro Hirao | 2020-01-07 |
| 9427795 | Method for producing a hollow engine valve | Kenichiro Hirao, Katsumi Nakamura, Hyoji Yoshimura | 2016-08-30 |
| 9302317 | Method for manufacturing hollow engine valve | Kenichiro Hirao, Hyoji Yoshimura | 2016-04-05 |
| 8881391 | Method for producing hollow engine valve | Hyoji Yoshimura | 2014-11-11 |
| 8713793 | Method for producing metallic-sodium-filled engine valve | Hyoji Yoshimura | 2014-05-06 |
| 8561297 | Method for producing engine valve in which sodium metal is sealed | Kazutaka Maruyama, Hyoji Yoshimura | 2013-10-22 |
| 8025924 | Cast-coated papers and processes for preparing thereof | Yukiko Ohira, Hidehiko Kai, Kiyoshi Hatakeyama, Hideaki Nisogi | 2011-09-27 |
| 7901542 | Coated papers for newsprint inks and processes for preparing them | Hiroshi Koyamoto, Koji Okomori, Masahito Suzuki | 2011-03-08 |
| 7828933 | Coated sheet for rotary offset printing | Koji Okomori, Chizuru Wakai | 2010-11-09 |
| 7829182 | Coated paper for printing | Chizuru Wakai, Hidehiko Kai, Seiki Yoneshige | 2010-11-09 |
| 7575802 | Coated printing papers | Akinobu Chatani, Koji Okomori, Hiroshi Koyamoto, Hitoshi Nagao | 2009-08-18 |
| 7208068 | Dullish coated paper for printing | Hideaki Nisogi, Jun Makihara, Yukiko Ohira | 2007-04-24 |
| 7160419 | Coated paper for printing | Masahito Suzuki, Koji Okomori, Masato Yamaguchi | 2007-01-09 |
| 7101459 | Printing coated paper | Hideaki Nisogi, Jun Makihara, Takehide Kasahara, Takashi Ochi, Hideki Fujiwara | 2006-09-05 |
| 6929845 | Coated paper for gravure | Hidehiko Kai, Koji Okomori, Chizuru Wakai, Hideki Fujiwara | 2005-08-16 |