EK

Eiji Kumakura

DI Daikin Industries: 48 patents #16 of 2,957Top 1%
TT The University Of Tokyo: 1 patents #1,000 of 2,633Top 40%
Overall (All Time): #57,400 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 26–48 of 48 patents

Patent #TitleCo-InventorsDate
11535781 Refrigeration cycle apparatus Takuro Yamada, Atsushi Yoshimi, Ikuhiro Iwata, Mitsushi ITANO, Daisuke KARUBE +13 more 2022-12-27
11506425 Refrigeration cycle apparatus Takuro Yamada, Atsushi Yoshimi, Ikuhiro Iwata, Mitsushi ITANO, Daisuke KARUBE +5 more 2022-11-22
11493244 Air-conditioning unit Takuro Yamada, Atsushi Yoshimi, Ikuhiro Iwata, Mitsushi ITANO, Daisuke KARUBE +5 more 2022-11-08
11435118 Heat source unit and refrigeration cycle apparatus Takuro Yamada, Atsushi Yoshimi, Ikuhiro Iwata, Mitsushi ITANO, Daisuke KARUBE +5 more 2022-09-06
11209195 Air conditioner with a refrigerant having a property of undergoing disproportionation Tetsuya Okamoto 2021-12-28
11143446 Refrigeration device controlling a temperature of compressor-discharged refrigerant Kazuhiro Furusho 2021-10-12
11112154 Air conditioner Ikuhiro Iwata, Tetsuya Okamoto 2021-09-07
10724525 Compression mechanism for a compressor Yukihiro Inada, Kazuhiro Furusho 2020-07-28
10465684 Rotary compressor Kousuke Nishimura, Takeyoshi Ohkawa 2019-11-05
8966920 Refrigeration system Masakazu Okamoto, Masanori Ukibune 2015-03-03
8312732 Refrigerating apparatus Katsumi Sakitani, Masakazu Okamoto, Tetsuya Okamoto 2012-11-20
8245528 Fluid machine Katsumi Sakitani, Masakazu Okamoto, Tetsuya Okamoto 2012-08-21
8122735 Refrigerating apparatus Katsumi Sakitani, Tetsuya Okamoto, Masakazu Okamoto 2012-02-28
7918096 Refrigeration system Katsumi Sakitani, Tetsuya Okamoto, Masakazu Okamoto 2011-04-05
7896627 Rotary type expander and fluid machinery Masakazu Okamoto, Michio Moriwaki, Tetsuya Okamoto, Katsumi Sakitani 2011-03-01
7802447 Positive displacement expander Masakazu Okamoto, Tetsuya Okamoto, Katsumi Sakitani 2010-09-28
7784303 Expander Katsumi Sakitani, Michio Moriwaki, Masakazu Okamoto, Yume Inokuchi, Tetsuya Okamoto +1 more 2010-08-31
7674097 Rotary expander Masakazu Okamoto, Michio Moriwaki, Tetsuya Okamoto, Katsumi Sakitani 2010-03-09
7628592 Fluid machine having reduced heat input to fluid Tetsuya Okamoto, Masakazu Okamoto, Michio Moriwaki, Katsumi Sakitani 2009-12-08
7618245 Fluid machine Masakazu Okamoto, Tetsuya Okamoto 2009-11-17
7618242 Hermetic sealed compressor Masahide Higuchi, Takashi Hirouchi 2009-11-17
7434414 Refrigeration apparatus Katsumi Sakitani, Michio Moriwaki, Masakazu Okamoto, Tetsuya Okamoto 2008-10-14
7419369 Displacement type expansion machine and fluid machine Katsumi Sakitani, Michio Moriwaki, Masakazu Okamoto, Tetsuya Okamoto 2008-09-02