Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11479737 | Water-soluble quenching oil composition | Rikki Homma | 2022-10-25 |
| 11180817 | Water-based quenching liquid composition and method for manufacturing metal material using same | Takashi Kondo, Rikki Homma | 2021-11-23 |
| 11015230 | Water-soluble quenching oil composition | Rikki Homma | 2021-05-25 |
| 10731099 | Heat treatment oil composition | Hideaki Hattori | 2020-08-04 |
| 10421924 | Water-based coolant | Mayu Hasegawa, Masahisa Goto, Kenro Noguchi | 2019-09-24 |
| 9637804 | Heat treating oil composition | Kenro Noguchi, Masayuki Kato, Masahiro Kobessho, Masahiro Yamada, Norihiro Takasaki | 2017-05-02 |
| 9023234 | Aqueous heat treatment liquid composition | Fumiaki Takagi, Masami Yamanaka | 2015-05-05 |
| 7993473 | Heat treatment oil composition | Masahiro Kobessho, Makoto Takeishi, Yasuyuki Fujiwara, Yoshimi Aoyama | 2011-08-09 |
| 7851422 | Quenching oil for reduced pressure quenching and method for quenching | Makoto Takeishi | 2010-12-14 |
| 7841766 | Metal surface temperature measuring instrument | Hideo Kanamori | 2010-11-30 |
| 7503985 | Quenching method | Makoto Takeishi | 2009-03-17 |
| 7347927 | Oil composition for heat treatment | Makoto Takeishi | 2008-03-25 |
| 6136759 | Additive composition | Fumiaki Takagi, Kazuaki Abe, Masami Yamanaka, Norihito Kanno | 2000-10-24 |
| 5801132 | Refrigerator oil composition | Masato Kaneko, Tsuneo Konishi | 1998-09-01 |