TO

Tatsuya Okumura

Ngk Spark Plug Co.: 7 patents #254 of 1,594Top 20%
AI Arakawa Chemical Industries: 4 patents #6 of 130Top 5%
DE Denso: 1 patents #6,940 of 11,792Top 60%
Overall (All Time): #410,590 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
11467121 Manufacturing method of gas sensor Takehiro Oba 2022-10-11
10876995 Manufacturing method of gas sensor Takehiro Oba 2020-12-29
9151728 Gas sensor Hidekazu Kato, Masahiro Asai, Tomoyuki Miyashita 2015-10-06
7758736 Gas sensor Satoshi Ishikawa, Takehiro Oba, Tomohiko Funahashi 2010-07-20
7542847 Map display device 2009-06-02
7415877 Gas sensor Tomohiro Nakamura 2008-08-26
7371092 Waterproof connector with a filter impermeable to liquid but permeable to air and a seal member impermeable to both liquid and air Tomohiro Nakamura, Tomohiko Funahashi 2008-05-13
6034183 Polymer having quaternary ammonium groups and process for the production thereof Jiro Mizuya, Junji Shiigi 2000-03-07
5679226 Oxygen sensor Keizo Furusaki, Hideya Tanaka, Yasuhiro Yamada 1997-10-21
5330582 Method for cleaning rosin-base solder flux Machio Chihara, Jiro Mizuya, Takashi Tanaka 1994-07-19
5256209 Method for cleaning rosin-base solder flux Machio Chihara, Jiro Mizuya, Takashi Tanaka 1993-10-26
5096504 Cleaning agent for rosin-base solder flux Machio Chihara, Jiro Mizuya, Takashi Tanaka 1992-03-17