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Hirofumi Kako — 29 Patents

Denso: 28 patents #197 of 11,792Top 2%

Toyota: 2 patents #11,016 of 26,838Top 45%

Chita, JP: #9 of 373 inventorsTop 3%

Overall (All Time): #127,851 of 4,157,543Top 4%

29 Patents All Time

Hirofumi Kako has been granted 29 US patents while listed as an inventor at Denso. The first was granted in 2012 and the most recent in February 2023. Hirofumi Kako ranks #127,851 of 4,157,543 US inventors in our database (top 3.1%). Patent records list Hirofumi Kako in Chita, JP.

Patents per Year

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
11594942	Control apparatus for rotating electric machine	Ryuji Omata, Kiyotaka Matsubara, Kazuhito Hayashi, Makoto Nakamura	2023-02-28
9590551	Control apparatus for AC motor	Ryuji Omata, Takeshi Itoh	2017-03-07
9374031	AC motor control apparatus	Takashi Suzuki, Takeshi Itoh	2016-06-21
9276517	Control device of AC motor	Ryuji Omata, Takeshi Itoh	2016-03-01
9172322	Control apparatus for AC motor	Ryuji Omata, Takeshi Itoh, Takashi Suzuki	2015-10-27
9160267	AC motor control apparatus	Ryuji Omata, Takeshi Itoh	2015-10-13
9154071	AC motor control apparatus	Takashi Suzuki, Takeshi Itoh	2015-10-06
9154070	Controller for AC motor	Ryuji Omata, Takeshi Itoh	2015-10-06
9154064	Control device for AC motor	Takashi Suzuki, Takeshi Itoh	2015-10-06
9120388	Rotating electrical machine drive system	Ryuji Omata, Takeshi Itoh	2015-09-01
9106170	Control device of AC motor	Ryuji Omata, Takeshi Itoh	2015-08-11
9106163	Control device of AC motor	Ryuji Omata, Takeshi Itoh	2015-08-11
9093936	Control apparatus for AC motor	Ryuji Omata, Takeshi Itoh	2015-07-28
9077278	AC motor control apparatus	Ryuji Omata, Takeshi Itoh	2015-07-07
9077273	Control device of AC motor	Ryuji Omata, Takeshi Itoh	2015-07-07
9065378	AC motor control apparatus	Ryuji Omata, Takeshi Itoh	2015-06-23
9065365	Control device of AC motor	Ryuji Omata, Takeshi Itoh	2015-06-23
9041324	AC motor control apparatus	Takashi Suzuki, Takeshi Itoh	2015-05-26
9035580	AC motor control apparatus	Takashi Suzuki, Takeshi Itoh	2015-05-19
9024553	AC motor control apparatus	Takashi Suzuki, Takeshi Itoh	2015-05-05
9007009	Control apparatus for AC motor	Ryuji Omata, Takeshi Itoh	2015-04-14
8981688	Control device for AC motor	Takashi Suzuki, Takeshi Itoh	2015-03-17
8957616	Control device for AC motor	Takashi Suzuki, Takeshi Itoh	2015-02-17
8957613	Control device for AC motor	Takashi Suzuki, Takeshi Itoh	2015-02-17
8917040	AC motor control apparatus	Ryuji Omata, Takeshi Itoh	2014-12-23