KF

Keiji Fujikawa

Mitsubishi Electric: 10 patents #2,886 of 25,717Top 15%
HI Hitachi: 6 patents #6,582 of 28,497Top 25%
KC Kansai Electric Power Co.: 2 patents #104 of 506Top 25%
HC Hitachi Computer Engineering Co.: 2 patents #9 of 170Top 6%
KK Kabushiki Kaisha Meiji Gomu Kasei: 1 patents #6 of 38Top 20%
AC Asahi Glass Co.: 1 patents #1,233 of 2,251Top 55%
Yamaha Motor: 1 patents #1,283 of 2,310Top 60%
Overall (All Time): #247,891 of 4,157,543Top 6%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
12410085 Waste treatment system and waste treatment method Akira Noma, Kazuhiro Kawai, Susumu Okino, Shinichi Okamoto, Shinji Nakamura +7 more 2025-09-09
9662607 CO2 recovery unit and CO2 recovery method Tatsuya Tsujiuchi, Hiromitsu Nagayasu, Takuya Hirata, Tetsuya Imai, Hiroshi Tanaka +4 more 2017-05-30
9383101 CO2 recovery unit and CO2 recovery method Tatsuya Tsujiuchi, Hiromitsu Nagayasu, Takuya Hirata, Tetsuya Imai, Hiroshi Tanaka +4 more 2016-07-05
9186619 CO2 recovery unit and method therefor Takuya Hirata, Tatsuya Tsujiuchi, Tsuyoshi Oishi 2015-11-17
9084961 Gas-liquid contacting plate, gas-liquid contacting laminated block body, gas-liquid contacting laminated structure and gas purification device Tatsuya Tsujiuchi, Hiromitsu Nagayasu, Hiroshi Tanaka, Takuya Hirata, Ryuji Yoshiyama +7 more 2015-07-21
8992871 CO shift catalyst, CO shift reactor, and method for purifying gasified gas Toshinobu Yasutake, Tetsuya Imai, Masanao Yonemura, Susumu Okino, Shinya Tachibana 2015-03-31
8887505 Carbon dioxide recovery system and method Masaki Iijima, Tetsuya Imai, Tatsuya Tsujiuchi, Tsuyoshi Oishi, Hiroshi Tanaka 2014-11-18
8377184 CO2 recovery apparatus and CO2 recovery method Takuya Hirata, Tatsuya Tsujiuchi, Tsuyoshi Oishi 2013-02-19
7387650 Fuel cell power generation system and method for operating the same Setsuo Omoto, Naohiko Ishibashi, Hirohisa Yoshida, Masami Kondo, Shigeru Nojima +3 more 2008-06-17
7056191 Method for chamfering a plate-like member Hideo Takatsuji, Akihiko Aritomi, Masao Goto, Tatsuya Yamasaki 2006-06-06
6551449 Thin electronic circuit component and method and apparatus for producing the same Yutaka Hashimoto, Isamu Takaoka, Shinichi Kazui, Hideaki Sasaki, Hitoshi Odashima +1 more 2003-04-22
6436158 Coal reforming process and apparatus therefor Setsuo Omoto, Hisao Yamaguchi 2002-08-20
6203655 Thin electronic circuit component and method and apparatus for producing the same Yutaka Hashimoto, Isamu Takaoka, Shinichi Kazui, Hideaki Sasaki, Hitoshi Odashima +1 more 2001-03-20
6137687 Printed circuit board, IC card, and manufacturing method thereof Mitsugu Shirai, Shinichi Kazui, Hideaki Sasaki, Makoto Matsuoka 2000-10-24
5745972 Method of producing parts/substrate assemblies Tetsuhiro Yokayama, Yoouichi Fukuoka, Yooichi Fujiwara, Junji Narita, Terumi Saitoo +1 more 1998-05-05
5520733 Deposition apparatus and profile-following device suitable for apparatuses such as those for deposition Hiroyuki Doi, Shinichi Kazui, Takeji Shiokawa, Yutaka Hashimoto, Makoto Matsuoka 1996-05-28
5513427 System for producing parts/substrate assemblies Tetsuhiro Yokoyama, Yoouichi Fukuoka, Yooichi Fujiwara, Junji Narita, Terumi Saitoo +1 more 1996-05-07
4766866 Intake system for engine Osamu Takii, Hironobu Ukei 1988-08-30