YK

Yoshifumi Kunugi

HI Hitachi: 14 patents #2,889 of 28,497Top 15%
OC Osaka Gas Co.: 1 patents #252 of 689Top 40%
TC Toho Gas Co.: 1 patents #14 of 69Top 25%
📍 Ibaraki, JP: #678 of 6,779 inventorsTop 15%
Overall (All Time): #358,013 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
5353866 Heat transfer fins and heat exchanger Hironobu Ueda, Toshio Hatada, Tomihisa Oouchi, Sigeo Sugimoto, Tamio Shimizu +1 more 1994-10-11
5205137 Absorption air conditioner Tomihisa Ohuchi, Akira Nishiguchi, Daisuke Hisajima, Seiichiro Sakaguchi, Michihiko Aizawa +2 more 1993-04-27
5186241 Chemical heat pump Michio Yanadori, Toshihiko Fukushima, Tomihisa Ohuchi 1993-02-16
5085271 Heat accumulation system and method of operating the same Michio Yanadori, Toshihiko Fukushima 1992-02-04
4841744 Double effect air cooled absorption refrigerating machine Shigekichi Kurosawa, Yoshikazu Nagaoka, Shinichi Kannoh, Sadatoshi Takemoto, Shigeo Sugimoto +5 more 1989-06-27
4791984 Heat transfer fin Toshio Hatada, Tomihisa Oouchi, Shigeo Sugimoto, Junichi Kaneko 1988-12-20
4756362 Heat exchanger Mituo Kudoh, Takuji Torii, Seigo Miyamoto, Yoshitomo Sawahata, Mizuho Yokoyama +1 more 1988-07-12
4748830 Air-cooled absorption heating and cooling system Tomihisa Oouchi, Kyoji Kohno, Kenzi Machizawa 1988-06-07
4655053 Air-cooled absorption refrigeration system Shigeo Sugimoto, Kyoji Kohno, Tomihisa Ouchi, Kenji Machizawa 1987-04-07
4563882 Air cooling type absorption cooler Shigeo Sugimoto, Kisaburo Minakawa, Kenzi Machizawa 1986-01-14
4546795 Solenoid valve Yoshio Okamoto, Kazumi Iwai, Hiroshi Inoue, Tadashi Shinozaki 1985-10-15
4476694 Absorption cooling and heating system 1984-10-16
4474551 Combustion apparatus Kazumi Iwai, Tadashi Shinozaki, Yoshio Okamoto, Hiroshi Inoue, Shigeyuki Yamazaki 1984-10-02
4448040 Absorption type heat pump system 1984-05-15