KK

Keiichi Kitamura

DE Denso: 7 patents #1,924 of 11,792Top 20%
NC Nippondenso Co.: 6 patents #366 of 3,479Top 15%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
TI Tokai Rubber Industries: 2 patents #181 of 557Top 35%
MC Mitsumi Electric Co.: 1 patents #527 of 935Top 60%
ND Ntt Docomo: 1 patents #1,030 of 1,706Top 65%
SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
Overall (All Time): #213,317 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12213376 Organic photoelectric conversion material Yuta ISHINO, Tomoya KASHIKI, Shohei Matsushita 2025-01-28
9523518 Refrigeration cycle device Shiho Hashimoto, Mitsuyoshi Tanaka, Junichi Ono 2016-12-20
8749204 Battery condition detector, battery pack including same, and battery condition detecting method Yoshihide Majima, Kazuhiko Takeno, Yasuyuki Kanai, Haruo Uemura 2014-06-10
7121103 Vehicle air conditioning system Satoshi Itoh, Toshinobu Homan 2006-10-17
7040117 Gas-liquid separator and ejector refrigerant cycle using the same Shin Nishida, Yoshitaka Tomatsu 2006-05-09
6857286 Vapor-compression refrigerant cycle system Hiromi Ohta, Motohiro Yamaguchi 2005-02-22
6708512 Vehicle air conditioner with cold accumulator Yuichi Shirota, Koji Takahashi 2004-03-23
6640568 Vehicle air conditioner with arrangement of temperature detector Yuichi Shirota, Koji Takahashi 2003-11-04
6530239 Refrigeration system Tetsuji Nobuta 2003-03-11
6439268 Fluid-impermeable composite hose Nobuaki Niki, Masanobu Ohnishi, Makoto Yoshino 2002-08-27
6345647 Fluid-impermeable composite hose Nobuaki Niki, Masanobu Ohnishi, Makoto Yoshino 2002-02-12
6316983 Predistortion circuit 2001-11-13
5490397 Water removing device in refrigerating system Shin Honda, Hisayoshi Sakakibara 1996-02-13
5448899 Refrigerant evaporator Toshio Ohara, Yoshiyuki Yamauchi, Masahiro Shimoya, Etuo Hasegawa, Keiichi Yoshii +4 more 1995-09-12
5376898 Semiconductor integrated circuit device Hiroyuki Tanaka, Yasushi Hatta, Tatsuya Kouketsu, Yasushi Takahashi, Kyosuke Ishikawa 1994-12-27
5367883 Refrigeration system Hisayoshi Sakakibara, Shin Honda 1994-11-29
5359862 Method and apparatus for detecting an amount of cooling medium charged in a refrigeration circulation system Hisao Nagashima, Hideaki Sato, Shin Honda 1994-11-01
5301520 Water removing device in refrigerating system Shin Honda, Hisayoshi Sakakibara, Masashi Honda 1994-04-12
4998413 Refrigerant recovery system Hideaki Sato, Hisao Nagashima, Kenichi Fujiwara 1991-03-12
4968904 MESFET circuit with threshold-compensated source-follower output Kiichi Yamashita, Nobuo Kotera, Yasushi Hatta, Hiroyuki Tanaka 1990-11-06