Inventor

Kei Machida

Inventor

Wako, JP

Overview

1993–2014

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 23 as inventor

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

Y02Tprimary

Y02TClimate change mitigation technologies related to transportation27%

F02DControlling combustion engines24%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general17%

F02BInternal-combustion piston engines8%

F02PIgnition, other than compression ignition, for internal-combustion engines5%

F01LCyclically operating valves for machines or engines4%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof4%

G01NInvestigating or analysing materials by determining their chemical or physical properties4%

B01DSeparation3%

F02NStarting of combustion engines1%

PatentTitleYear

8,637,998'Semiconductor chip and semiconductor device'2014 7,062,968'Temperature control apparatus for humidity sensor'2006 6,978,598'Deteriorated state evaluation device for exhaust emission control equipment'2005 6,945,034'Exhaust gas purifying apparatus for internal combustion engine'2005 6,928,805'Hydrocarbon adsorbent state monitoring device'2005 6,860,143'State determining apparatus for humidity sensor'2005 6,823,722'Adsorbent state determining apparatus'2004 6,820,416'Exhaust emission control system for an internal combustion engine'2004 6,799,420'Method of evaluating deteriorated state of hydrocarbon adsorbent'2004 6,641,303'Temperature control system for humidity sensor'2003 6,601,444'Exhaust gas characteristic detecting apparatus for internal combustion engine'2003 6,422,006'Exhaust gas purifying apparatus for internal combustion engine'2002 6,334,304'Degradation discrimination system of internal combustion engine exhaust gas purification system'2002 5,629,853'Fuel injection control system for internal combustion engines'1997 5,596,956'Electromagnetically driven valve control system for internal combustion engines'1997 5,540,209'Air-fuel ratio detection system for internal combustion engine'1996 5,537,817'Air-fuel ratio control system for internal combustion engines'1996 5,483,935'Control system for internal combustion engines'1996 5,426,938'Control system for internal combustion engines'1995 5,386,694'Control system for internal combustion engines'1995 5,383,126'Control system for internal combustion engines with exhaust gas recirculation systems'1995 5,353,773'Air-fuel ratio control system for internal combustion engines'1994 5,261,370'Control system for internal combustion engines'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2006Patents assigned to HONDA MOTOR CO LTD (22)· patent assignee history

1993–2005Based in Wako, JP· patent location history

2002–2006Based in Saitama, JP· patent location history

2014Patents assigned to MACHIDA KEI (1)· patent assignee history

2014Patents assigned to RENESAS ELECTRONICS CORP (1)· patent assignee history

2014Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HONDA MOTOR CO LTD	22	1993–2006
MACHIDA KEIself	1	2014
RENESAS ELECTRONICS CORP	1	2014

Locations

Location	Patents	Span
Wako, JP	14	1993–2005
Saitama, JP	8	2002–2006
Kanagawa, JP	1	2014