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Inventor

Tsutomu Hiyoshi

Inventor
Susono, JP

Overview

2→
Patents
1977–1984
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F01Lprimary
F01LCyclically operating valves for machines or engines25%
F01MLubricating of machines or engines in general25%
F02BInternal-combustion piston engines25%
Y02TClimate change mitigation technologies related to transportation25%
PatentTitleYear
4,452,188'Apparatus for controlling feed of oil discharged from oil pump'19844,038,959'Internal combustion engine with a subsidiary combustion chamber'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to TOYOTA MOTOR CO LTD (1)· patent assignee history
1977–1984Based in Susono, JP· patent location history
1984Patents assigned to NIPPON SOKEN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON SOKEN11984
TOYOTA MOTOR CO LTD11977
Locations
LocationPatentsSpan
Susono, JP21977–1984