Inventor

Shunzo Yamaguchi

Inventor

Okazaki, JP

Overview

1976–1987

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 26 as inventor

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

Y02Tprimary

Y02TClimate change mitigation technologies related to transportation18%

F02BInternal-combustion piston engines14%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general11%

F02PIgnition, other than compression ignition, for internal-combustion engines11%

C04BLime, magnesia7%

H05BElectric heating7%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof5%

F23QIgnition5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

F02DControlling combustion engines4%

PatentTitleYear

4,713,582'Spark plug'1987 4,681,989'Ignition distributor for internal combustion engines'1987 4,640,996'Ignition distributor for internal combustion engines'1987 4,639,712'Sheathed heater'1987 4,625,085'Material for high frequency suppression and distributor for combustion engine composed of the same material'1986 4,613,455'Ceramic heater and a method for its production'1986 4,549,905'Ceramic heater'1985 4,505,107'Exhaust gas cleaning apparatus'1985 4,475,029'Ceramic heater'1984 4,449,039'Ceramic heater'1984 4,448,833'Porous ceramic body and a method of manufacturing the same'1984 4,426,568'Glow plug for diesel engines'1984 4,202,312'Ignition device for rotary piston engine'1980 4,191,013'Device for purifying exhaust gases from internal combustion engine'1980 4,175,386'Exhaust gas purification apparatus for an internal combustion engine'1979 4,170,212'Ignition system for rotary piston engines'1979 4,164,261'Ignition apparatus for rotary piston engine'1979 4,162,669'Ignition system for rotary piston engines'1979 4,147,030'Engine exhaust gas purification system'1979 4,110,979'Apparatus for introducing secondary air into an exhaust system of an internal combustion engine'1978 4,036,183'Rotary piston engine'1977 4,030,464'Fuel-air mixture heating device for use with internal combustion engine'1977 4,002,025'System for heating intake pipe of internal combustion engine'1977 3,977,368'Rotary piston engine'1976 3,977,366'Intake system of internal combustion engine'1976 3,970,049'Ignition system for rotary piston engine'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1980Patents assigned to NIPPON SOKEN (9)· patent assignee history

1976–1977Based in Nishio, JP· patent location history

1977Based in Mishio, JA· patent location history

1978–1986Patents assigned to TOYOTA MOTOR CO LTD (8)· patent assignee history

1978–1987Based in Okazaki, JP· patent location history

1984–1987Patents assigned to NIPPON DENSO CO (12)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON DENSO CO	12	1984–1987
NIPPON SOKEN	9	1976–1980
TOYOTA MOTOR CO LTD	8	1978–1986

Locations

Location	Patents	Span
Okazaki, JP	20	1978–1987
Nishio, JP	5	1976–1977
Mishio, JA	1	1977