Inventor

Masao Yasukawa

Inventor

Toyota, JP

Overview

11→

Patents

1981–2000

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 11 as inventor

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

F02Bprimary

F02BInternal-combustion piston engines29%

Y02TClimate change mitigation technologies related to transportation19%

B66BElevators10%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof10%

F16HGearing10%

Y10TTechnical subjects covered by former us classification10%

B22DCasting of metals5%

F02FCylinders, pistons or casings, for combustion engines5%

F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines5%

PatentTitleYear

6,065,583'Speed-variable conveyor'2000 5,636,605'Composite intake manifold for an internal combustion engine'1997 5,571,254'Speed variable moving sidewalk'1996 5,173,095'Evaporative fuel control canister containing absorbent swelling by absorbing liquid fuel'1992 4,690,104'Cylinder head with inwardly projecting cup plug in casting sand extraction hole for speeding up coolant flow'1987 4,688,441'Gear assembly for mating with third gear without backlash'1987 4,640,147'Gear assembly adapted for mating with a third gear without backlash'1987 4,289,099'Combustion chamber of an internal combustion engine'1981 4,284,044'Combustion chamber of an internal combustion engine'1981 4,280,459'Combustion chamber of an internal combustion engine'1981 4,259,933'Combustion chamber of an internal combustion engine'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1997Patents assigned to TOYOTA MOTOR CO LTD (9)· patent assignee history

1981–1987Based in Toyota, JP· patent location history

1987–1997Based in Okazaki, JP· patent location history

1992Patents assigned to TOYODA CHUO KENKYUSHO KK (1)· patent assignee history

1992Patents assigned to TOYOTA GOSEI KABUSHIKI KAISHA (1)· patent assignee history

1996–2000Patents assigned to MITSUBISHI HEAVY IND LTD (2)· patent assignee history

1996–2000Based in Mihara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOYOTA MOTOR CO LTD	9	1981–1997
MITSUBISHI HEAVY IND LTD	2	1996–2000
TOYODA CHUO KENKYUSHO KK	1	1992
TOYOTA GOSEI KABUSHIKI KAISHA	1	1992

Locations

Location	Patents	Span
Toyota, JP	5	1981–1987
Okazaki, JP	4	1987–1997
Mihara, JP	2	1996–2000