Inventor

Makoto Anzai

Inventor

Yokosuka, JP

Overview

1976–2000

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 20 as inventor

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

F02Dprimary

F02DControlling combustion engines57%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof7%

H04LTransmission of digital information, e.g. telegraphic communication7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

F02BInternal-combustion piston engines4%

F02PIgnition, other than compression ignition, for internal-combustion engines4%

H03JTuning resonant circuits4%

H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses4%

H04BTransmission4%

Y02TClimate change mitigation technologies related to transportation4%

PatentTitleYear

6,041,085'Carrier regenerating circuit, multi-level quadrature amplitude demodulator, and method of detecting frequency deviation'2000 5,905,718'Communication system for multicasting delay-adjusted signals on same radio frequencies to adjoining cells'1999 5,881,111'Frequency sweep circuit'1999 5,253,624'Idling speed control system of internal combustion engine'1993 5,211,150'Fuel supply apparatus for internal combustion engine'1993 5,121,724'Multi-cylinder internal combustion engine with individual port throttles upstream of intake valves'1992 5,113,826'Intake air control system for internal combustion engine'1992 4,379,441'System for controlling the air-fuel ratio in a combustion engine'1983 4,369,757'Plasma jet ignition system'1983 4,214,558'Fuel control method and system with a circuit for operating valve in effective working range'1980 4,182,292'Closed loop mixture control system with a voltage offset circuit for bipolar exhaust gas sensor'1980 4,174,680'Closed loop air-fuel ratio control system'1979 4,171,690'Emission control system for internal combustion engines utilizing balance differential amplifier stage'1979 4,156,404'Electronic closed loop air-fuel ratio control system'1979 4,120,270'Closed-loop mixture control system for an internal combustion engine with fail-safe circuit arrangement'1978 4,116,170'Electronic closed loop control system for internal combustion engine'1978 4,112,893'Air/fuel ratio control system for internal combustion engine having high input impedance circuit'1978 4,109,626'Fuel supply control system with feedback fuel pipe for internal combustion engine'1978 4,034,727'Automotive engine carburetor'1977 3,960,120'Electronic fuel injection control circuit for an internal combustion engine'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to NISAN MOTOR CO LTD (1)· patent assignee history

1976–1992Based in Yokosuka, JP· patent location history

1977–1993Patents assigned to NISSAN MOTOR (16)· patent assignee history

1992Based in Yokohama, JP· patent location history

1993Based in Kariya, Aichi-pref., JP· patent location history

1993Based in Kanagawa, JP· patent location history

1999–2000Patents assigned to NEC CORP (3)· patent assignee history

1999–2000Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NISSAN MOTOR	16	1977–1993
NEC CORP	3	1999–2000
NISAN MOTOR CO LTD	1	1976

Locations

Location	Patents	Span
Yokosuka, JP	14	1976–1992
Tokyo, JP	3	1999–2000
Kariya, Aichi-pref., JP	1	1993
Kanagawa, JP	1	1993
Yokohama, JP	1	1992