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Inventor

Takeshi Ishii

Inventor
Tokyo, JP

Overview

64→
Patents
1981–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 64 as inventor

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

G03Gprimary
G03GElectrography10%
H01JElectric discharge tubes or discharge lamps10%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture7%
C12NMicroorganisms or enzymes6%
B01DSeparation3%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof3%
F25BRefrigeration machines, plants or systems3%
G06KGraphical data reading3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
C10GCracking hydrocarbon oils3%
PatentTitleYear
10,841,690Sound reproducing apparatus, sound reproducing method, and computer readable storage medium202010,354,829Magnetron201910,254,688Image forming apparatus with pivoting fixing device20199,933,724Image forming apparatus and image forming method with developing voltage correction processing20189,920,390'Method for preliminary treatment of molten iron'20189,846,400Image forming apparatus that executes light emission based on discharge dot count value20179,631,845'Heat pump system using waste heat and heat engine-driven vapor compression heat pump system'20179,488,959'Image forming apparatus that ensures cooling performance of toner container and downsized image forming apparatus'20169,411,258'Image forming apparatus'20169,315,875'Method of refining molten iron'20169,261,780'Radiation-sensitive resin composition, method for forming resist pattern, and polymer and compound'20169,235,155'Image forming apparatus'20169,223,248'Image forming apparatus for image failure prevention'20159,127,548'3-stroke/6-stroke rocket jet engine'20159,052,635'Image forming apparatus'20159,031,477'Toner case including conveying member attached to case body and image forming apparatus including toner case'20159,023,467'Surface-coated WC-based cemented carbide insert'20159,000,669'Magnetron and microwave utilization device'20158,900,698'Polylactic acid resin sheet and molded article'20148,811,857'Sheet feeding device, and image forming apparatus provided with same'20148,723,420'Magnetron and microwave-using equipment'20148,723,419'Magnetron and device using microwaves'20148,479,953'Beverage dispenser'20138,479,531'Liquid containing bag and frozen dessert manufacturing apparatus using the same'20138,479,534'Beverage dispenser'20138,414,135'Reflector for vehicle'20138,159,137'Magnetron'20127,919,924'Magnetron and method of manufacturing magnetron anode vane'20117,913,614'Milk foamer'20117,906,912'Magnetron'20117,696,697'Magnetron'20107,548,026'Magnetron'20097,538,654'Temperature detector and fixing device provided therewith'20097,529,501'Image forming apparatus with efficient space utilization'20097,148,627'Magnetron'20067,023,137'Magnetron'20066,989,634'Magnetron cathode assembly'20066,960,460'Esterase gene and its use'20056,800,827'Method for efficient laser isotope separation and enrichment of silicon'20046,514,740'Esterase gene and its use'20036,472,189'Esterase gene and its use'20026,316,106'Filler sand for a ladle tap hole valve'20016,306,634'Esterase gene and its use'20016,207,429'Method for producing optically active cyclopropanecarboxylic acid'20016,184,008'Production of optically active sphingoid compound'20016,127,152'Process for producing nucleoside derivatives'20006,087,145'Esterase gene and its use'20005,678,206'Keypad cover hinge'19975,390,589'Vertical pearling machines and apparatus for preliminary treatment prior to flour milling using such pearling machines'19955,343,029'Optical scanner having laser diode as light source'19945,271,570'Method of and system for flour milling'19935,268,565'Compact type bar code reader'19935,187,361'Object detection apparatus of the photoelectric reflection type with sampled data'19935,163,063'Semiconductor laser driving circuit'19925,158,506'Ice-cream manufacturing apparatus and refrigeration controller therefor'19925,095,203'Article detection device and method with shift registers and sampling'19924,670,614'Hydrocarbon conversion process'19874,634,919'Bulb'19874,482,450'Process for catalytic reaction of heavy oils'19844,454,849'Canister for internal combustion engine'19844,403,587'Fuel evaporative emission control apparatus for vehicles'19834,359,379'Process for fluid catalytic cracking of distillation residual oils'19824,338,106'Canister for fuel evaporative emission control system'19824,306,894'Canister for fuel evaporative emission control systems'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1994Patents assigned to FUJITSU LTD (4)· patent assignee history
1992–2020Based in Tokyo, JP· patent location history
2000–2005Patents assigned to SUMITOMO CHEMICAL CO (8)· patent assignee history
2000–2005Based in Takarazuka, JP· patent location history
2006–2012Based in Tochigi, JP· patent location history
2009–2014Patents assigned to PANASONIC CORP (7)· patent assignee history
2009–2019Based in Osaka, JP· patent location history
2012–2016Patents assigned to ISHII TAKESHI (13)· patent assignee history
2014–2019Based in Shiga, JP· patent location history
2015–2018Patents assigned to OKI DATA KK (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ISHII TAKESHIself132012–2016
SUMITOMO CHEMICAL CO82000–2005
PANASONIC CORP72009–2014
OKI DATA KK62015–2018
FUJITSU LTD41992–1994
Locations
LocationPatentsSpan
Tokyo, JP151992–2020
Osaka, JP92009–2019
Tochigi, JP62006–2012
Takarazuka, JP62000–2005
Shiga, JP42014–2019