Inventor

Hiroyoshi Ishii

Inventor
Kobe, JP

Overview

18→
Patents
1990–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 18 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F02Bprimary
F02BInternal-combustion piston engines14%
Y02TClimate change mitigation technologies related to transportation14%
F02DControlling combustion engines12%
G02BOptical elements, systems or apparatus10%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof8%
F02PIgnition, other than compression ignition, for internal-combustion engines8%
H05KPrinted circuits5%
Y10TTechnical subjects covered by former us classification3%
A61BDiagnosis2%
A61NElectrotherapy2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Based in Saitama, JP· patent location history
1991–1993Based in Kumagaya, JP· patent location history
2010–2012Patents assigned to OPNEXT JAPAN INC (4)· patent assignee history
2010–2012Based in Yokohama, JP· patent location history
2012–2015Patents assigned to ISHII HIROYOSHI (5)· patent assignee history
2014–2020Patents assigned to KAWASAKI HEAVY IND LTD (8)· patent assignee history
2014–2015Patents assigned to TOKUOKA TETSUO (3)· patent assignee history
2014–2020Based in Kobe, JP· patent location history
2017–2018Patents assigned to OCLARO JAPAN INC (3)· patent assignee history
2017–2018Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KAWASAKI HEAVY IND LTD82014–2020
ISHII HIROYOSHIself52012–2015
OPNEXT JAPAN INC42010–2012
OCLARO JAPAN INC32017–2018
TOKUOKA TETSUO32014–2015
Locations
LocationPatentsSpan
Kobe, JP82014–2020
Yokohama, JP42010–2012
Kanagawa, JP32017–2018
Kumagaya, JP21991–1993
Saitama, JP11990