Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9266379 | Thermochromic writing instrument | Yoshinori Imamura, Nobuo Sekine | 2016-02-23 |
| 8899602 | Vehicle suspension support structure | Yoko Takanashi, Toshiyuki Yokota | 2014-12-02 |
| 8613844 | Gas sensor having a laminate comprising solid electrolyte layers and alumina substrate | Takao Kojima, Shigeki Mori | 2013-12-24 |
| 8322937 | Thermochromic writing instrument | Yoshinori Imamura, Nobuo Sekine | 2012-12-04 |
| 7946777 | Multi-refill writing instrument | Osami Yamauchi | 2011-05-24 |
| 7887684 | Lamination-type gas sensor element and gas sensor | Shinya Awano, Keisuke Makino, Yoshiaki Kuroki, Takao Kojima | 2011-02-15 |
| 7827849 | Gas sensor | Takashi Nakashima, Yuichi Yamada | 2010-11-09 |
| 7559224 | Sensor | Takaya Yoshikawa, Junji Kawai, Kenji Hayashi, Shinji Tanabe, Noboru Ishida +1 more | 2009-07-14 |
| 7163609 | Gas sensor having a laminate comprising solid electrolyte layers and alumina substrate | Takao Kojima, Shigeki Mori | 2007-01-16 |
| 7083352 | Ballpoint pen | Hideyuki Tanaka | 2006-08-01 |
| 6923902 | Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor | Noboru Ishida, Satoshi Sugaya, Takafumi Oshima, Norihiko Nadanami, Takaki Otsuka +3 more | 2005-08-02 |
| 6805511 | Ball point pen | — | 2004-10-19 |
| 6743352 | Method and apparatus for correcting a gas sensor response for moisture in exhaust gas | Noboru Ishida, Satoshi Sugaya, Takafumi Oshima, Norihiko Nadanami, Takaki Otsuka +3 more | 2004-06-01 |
| D489088 | Ball-point pen | Naomi Arita | 2004-04-27 |
| 6695964 | Method and apparatus for measuring NOx gas concentration | Noboru Ishida, Satoshi Sugaya, Takafumi Oshima, Norihiko Nadanami, Takaki Ootuka +2 more | 2004-02-24 |
| 6623617 | Method and apparatus for measuring concentration of a component in a gas | — | 2003-09-23 |
| D472577 | Ball-point pen | Makoto Sakuno | 2003-04-01 |
| 6375828 | Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor | Noboru Ishida, Satoshi Sugaya, Takafumi Oshima, Norihiko Nadanami, Takaki Otsuka +3 more | 2002-04-23 |
| 6344134 | Method for measuring NOx concentration and NOx concentration sensor | Tessho Yamada, Noboru Ishida, Toshitaka Matsuura, Yoshiro Noda, Nobuhiro Hayakawa +4 more | 2002-02-05 |
| 6224727 | NOx sensor | Shigeru Miyata, Hiroshi Inagaki, Noboru Ishida, Takafumi Oshima | 2001-05-01 |
| 6214208 | Method and apparatus for measuring NOx gas concentration | Noboru Ishida, Satoshi Sugaya, Takafumi Oshima, Norihiko Nadanami, Takaki Ootuka +2 more | 2001-04-10 |
| 6071393 | Nitrogen oxide concentration sensor | Takafumi Oshima, Noboru Ishida, Satoshi Sugaya, Norihiko Nadanami | 2000-06-06 |
| 5904432 | Ballpoint pen tip, manufacturing method therefor, and ballpoint pen using the same | Nobuo Sekine, Masahiro Kondo, Hideaki Asami, Nobuo Matsubara | 1999-05-18 |
| 5899625 | Ballpoint pen tip | Nobuo Sekine, Masahiro Kondo, Hideaki Asami, Nobuo Matsubara | 1999-05-04 |