HK

Hiroyasu Koyama

TO Toyota: 10 patents #2,889 of 26,838Top 15%
GI Gs Yuasa International: 8 patents #55 of 491Top 15%
NC Nippon Thermostat Co.: 2 patents #25 of 67Top 40%
Yamaha Motor: 2 patents #855 of 2,310Top 40%
DE Denso: 1 patents #6,940 of 11,792Top 60%
Overall (All Time): #250,860 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11545717 Energy storage apparatus Kazuo HARUKI 2023-01-03
11362394 Energy storage apparatus Masashi Ohshiba, Kazuya Fujisawa, Yuta Mizukawa 2022-06-14
10522798 Energy storage apparatus Masashi Oshiba, Yuta Mizukawa, Kazuya Fujisawa 2019-12-31
10494987 Coolant passage device for internal combustion engine Fujio Inoue, Daisuke Tsukamoto 2019-12-03
10290845 Energy storage apparatus Masashi Ohshiba, Kazuya Fujisawa, Yuta Mizukawa 2019-05-14
10164229 Energy storage apparatus Masashi Ohshiba, Kazuya Fujisawa, Yuta Mizukawa 2018-12-25
10115953 Energy storage apparatus Masashi Oshiba, Yuta Mizukawa, Kazuya Fujisawa 2018-10-30
9859533 Energy storage apparatus Masashi Oshiba, Yuta Mizukawa, Kazuya Fujisawa 2018-01-02
9695776 Cylinder block Ryohei Muramoto 2017-07-04
D775073 Battery module Masashi Oshiba, Kazuya Fujisawa, Yuta Mizukawa 2016-12-27
9222401 Coolant passage apparatus for internal combustion engine Fujio Inoue 2015-12-29
7568893 Electric air pump for secondary air supply system 2009-08-04
7222483 Device for supplying secondary air Yasuhiro Oi, Kaoru Ohtsuka, Shinya Kondo, Tetsuji Nagata 2007-05-29
7140177 Secondary air supply system and abnormality diagnosis method of secondary air supply system Yasuhiro Oi 2006-11-28
7010908 Anomaly judgment apparatus for secondary air supply system Shigemasa Hirooka, Takeo Ogiso, Kenji Kimura, Keita Nakanishi 2006-03-14
6966177 Anomaly judgment apparatus for secondary air supply system Kenji Kimura, Shigemasa Hirooka, Takeo Ogiso, Keita Nakanishi 2005-11-22
6923169 Exhaust gas purifying apparatus of internal combustion engine and activation control method for the same Takayuki Demura, Kaoru Ohtsuka 2005-08-02
6755165 Valve control apparatus and method for internal combustion engine Shinya Kondou 2004-06-29