Inventor

Takumi Nonaka

Inventor

Iwate, JP

Overview

2002–2020

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 39 as inventor

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

F02Mprimary

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof43%

F02DControlling combustion engines18%

F02BInternal-combustion piston engines10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

Y02TClimate change mitigation technologies related to transportation6%

F02PIgnition, other than compression ignition, for internal-combustion engines3%

G06FElectric digital data processing3%

B23PMetal-working not otherwise provided for1%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general1%

F04BPositive-displacement machines for liquids1%

PatentTitleYear

10,669,972Main fuel jet and nozzle assembly for a carburetor2020 10,655,556Fuel injection device2020 10,634,095Portable engine working machine and rotary carburetor incorporated therein2020 10,495,029Carburetor with single diaphragm for supplying and metering fuel2019 10,495,017Portable working machine including engine with carburetor and fuel supply control method thereof2019 10,273,917Fuel injection device2019 10,267,266Attachment structure for solenoid valve to carburetor unit2019 10,202,942Portable engine working machine and rotary carburetor incorporated therein2019 10,145,346Electromagnetic fuel valve2018 10,132,265Fuel injection device2018 9,938,932Carburetor with single diaphragm for supplying and metering fuel2018 9,897,042'Main fuel jet and nozzle assembly for a carburetor'2018 9,840,990'Fuel injection device'2017 9,599,067'Attachment structure for solenoid valve to carburetor unit'2017 9,581,117'Fuel injection device'2017 9,422,890'Rotary carburetor'2016 9,394,870'Fuel injection device'2016 9,382,876'Main fuel jet and nozzle assembly for a carburetor'2016 9,297,336'Carburetor with single diaphragm for supplying and metering fuel'2016 9,188,066'Speed reduction method for hand-carried engine-driven working machine'2015 9,115,670'Fuel control method for hand-carried engine-driven working machine'2015 9,068,541'Fuel injection device'2015 9,062,621'Fuel control method for handheld engine operating machine'2015 8,899,202'Fuel injection device'2014 8,752,528'Fuel injection device'2014 7,278,629'Carburetor'2007 7,168,423'Gas sensor units for engines'2007 7,144,230'Pulse fuel pump for a diaphragm carburetor'2006 6,880,812'Carburetor'2005 6,860,254'Carburetor'2005 6,845,972'Fuel system of carburetor'2005 6,843,469'Scavenging air/fuel-air mixture control device for a stratified scavenging two-cycle engine'2005 6,827,338'Scavenging air/fuel-air mixture control device for a stratified scavenging two-cycle engine'2004 6,755,397'Diaphragm-type carburetor'2004 6,702,262'Fuel system of carburetor'2004 6,681,299'Cache-tag control method in information processing apparatus having cache, with error checking mechanism in cache tag, and information processing apparatus using this control method'2004 6,662,767'Scavenging air/fuel-air mixture control device for a stratified scavenging two-cycle engine'2003 6,631,889'Diaphragm-type carburetor'2003 6,496,903'Cache memory device'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2004Based in Kawasaki, JP· patent location history

2003–2007Patents assigned to ZAMA JAPAN (11)· patent assignee history

2003–2007Based in Iwate-ken, JP· patent location history

2007–2020Patents assigned to ZAMA JAPAN CO LTD (16)· patent assignee history

2014–2016Patents assigned to ZAMA JAPAN KABUSHIKI KAISHA (6)· patent assignee history

2014–2020Based in Iwate, JP· patent location history

2015Patents assigned to IIDA DENKI KOGYO KK (3)· patent assignee history

2015Based in Hachimantai, JP· patent location history

2016–2020Patents assigned to YAMABIKO CORP (4)· patent assignee history

2019–2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ZAMA JAPAN CO LTD	16	2007–2020
ZAMA JAPAN	11	2003–2007
ZAMA JAPAN KABUSHIKI KAISHA	6	2014–2016
YAMABIKO CORP	4	2016–2020
IIDA DENKI KOGYO KK	3	2015

Locations

Location	Patents	Span
Iwate, JP	18	2014–2020
Iwate-ken, JP	12	2003–2007
Tokyo, JP	3	2019–2020
Hachimantai, JP	3	2015
Kawasaki, JP	2	2002–2004