LexDanaLexDanabeta
Inventor

Masayasu Ito

Inventor
Shizuoka, JP

Overview

143→
Patents
1993–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 143 as inventor

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

H05Bprimary
H05BElectric heating37%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications16%
B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
F21SNon-portable lighting devices3%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems3%
C08JWorking-up2%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted2%
A63FCard, board, or roulette games1%
F21VFunctional features or details of lighting devices or systems thereof1%
PatentTitleYear
10,661,701Lighting circuit and vehicular lighting device202010,531,547Vehicular lighting device202010,426,012Lighting circuit and vehicle lamp201910,143,929Portable electronic device201810,126,478Resin composition and optical compensation film using same20189,932,488Resin composition, optical compensation film using same, and production method for same20189,598,000'Vehicle lamp system'20179,512,284'Fumaric acid diester-cinnamic acid ester-based copolymer, production method thereof and film using the same'20169,386,646'Vehicle lamp and vehicle lamp driving device'20169,320,107'Vehicular lamp'20169,265,109'Light source control device'20169,226,349'Semiconductor light source lighting circuit'20159,207,718'Portable electronic device'20159,198,247'Vehicle lamp, driving device thereof, and control method thereof'20158,994,287'Light source control device'20158,985,824'Automotive lamp having fan'20158,970,136'Semiconductor light source lighting circuit and vehicular lamp'20158,947,017'Semiconductor light source lighting circuit'20158,928,244'Semiconductor light source lighting circuit'20158,710,769'Discharge lamp lighting circuit'20148,672,767'Portable electronic device'20148,580,000'Indirect heat-drying apparatus, indirect heat-drying method of drying substance to be dried, and method and apparatus for producing solid fuel'2013D0688636'Switch'20138,373,401'Step-up/step-down DC-DC converter and vehicle lighting appliance'20138,339,046'Lighting control device of lighting device for vehicle'20128,314,160'Thermoplastic resin foam'20128,314,573'Discharge lamp lighting circuit'20128,222,839'Dimming control system for vehicular lamp'20128,207,675'Vehicle lamp'20128,110,989'Lighting controller of lighting device for vehicle'20128,105,169'Portable electronic device'20128,097,976'Lighting controller for a vehicle lamp'20128,018,087'Vehicular lamp'20117,964,988'Lighting controller of lighting device for vehicle'20117,919,925'Lighting control device of lighting device for vehicle'20117,902,773'Light emitting device'20117,880,401'Lighting controlling device of vehicle lighting equipment'20117,868,563'Light emitting device drive circuit and vehicle lamp using the same'20117,829,903'Light emitting apparatus'20107,825,599'Lighting control apparatus of vehicle-purpose lighting device'20107,741,788'Light emitting apparatus with current limiting'20107,714,516'Lighting control apparatus for vehicle lamp'20107,638,947'Lighting control circuit for vehicle lighting fixture'20097,636,037'Vehicle lighting apparatus'20097,635,952'Lighting controller for lighting device for vehicle'20097,626,275'Semiconductor device'20097,528,553'Lighting control apparatus for vehicle lighting device'20097,489,601'Disk drive'20097,482,765'Lighting control apparatus of lighting device for vehicle'20097,479,743'Vehicle lighting apparatus'20097,456,590'Vehicular lamp'20087,443,050'Power device for multiple light sources with switching and charge pump circuit'20087,439,688'Discharge lamp lighting circuit with power control'20087,417,381'Discharge lamp lighting circuit'20087,414,524'Lighting control circuit for vehicle lighting equipment'20087,403,107'Lighting control circuit for vehicle lighting equipment'20087,385,831'Power supply device and vehicle lamp'20087,368,885'Lighting controller for lighting device for vehicle'20087,352,135'Lighting controller for lighting device for vehicle'20087,348,733'Discharge lamp lighting circuit and method'20087,330,107'Lighting control circuit for vehicle lighting equipment'20087,327,586'Power supply unit and lighting device for vehicle'20087,327,051'Lighting control circuit for vehicle lamps'20087,318,662'Vehicular headlamp'2008D0559794'Push switch'20087,309,960'Vehicular lamp with current controlling unit'20077,301,284'Lighting control circuit for vehicle lighting equipment'20077,301,784'Lighting control unit for vehicle lighting fixture'20077,294,968'Signal transmisson system and vehicular lamp'20077,291,989'Lighting control circuit for vehicle lighting equipment'20077,282,872'Discharge lamp lighting circuit'20077,274,150'Lighting control circuit for vehicle lighting equipment'20077,244,036'Vehicular lamp'20077,237,928'Vehicle head lamp'20077,237,935'Light source module and vehicular lamp'20077,208,880'Vehicular lamp'20077,205,680'Vehicular lamp'20077,180,249'Switching element driving circuit and discharge lamp lighting apparatus'20077,176,638'Discharge lamp lighting circuit'20077,173,375'Vehicular lamp'20077,164,235'Vehicular lamp'20077,157,864'Vehicular lamp, cold cathode fluorescent lamp lighting apparatus, and cold cathode fluorescent lamp lighting method'20077,116,052'Vehicular lamp'20067,105,945'Lighting device for vehicle'20067,084,580'Discharge lamp lighting circuit'20067,084,571'Vehicular lamp'20067,081,708'Lighting circuit'20067,075,246'Discharge lamp illumination circuit'20067,019,465'Discharge lamp illumination circuit and discharge lamp illumination method'20067,005,808'Discharge lamp illumination circuit'20066,989,635'Vehicular lamp with current limiting circuit'20066,989,638'Discharge lamp lighting circuit'20066,975,070'Power source apparatus and vehicular lamp'20056,963,177'Open circuit detection for vehicular lamp'20056,930,472'Switching regulator circuit'20056,917,166'Vehicular lamp'20056,876,153'Switching regulator circuit and vehicular lamp'20056,873,111'Vehicular lamp'20056,867,557'Lighting circuit'20056,847,169'Lighting circuit'20056,844,681'Vehicle light apparatus'20056,819,058'Discharge-lamp lighting circuit'20046,791,273'Vehicle lighting fixture'20046,768,275'Discharge lamp lighting circuit'20046,759,812'Discharge lamp lighting circuit for detecting failure of a switching element'20046,707,261'Discharge lamp lighting circuit'20046,707,654'Protection device that shuts off in case of reversed connection'20046,654,684'Navigation apparatus and method that performs route guiding to a provider location'20036,624,594'Discharge lamp lighting circuit'20036,617,807'Discharge lamp lighting circuit for a plurality of discharge lamps'20036,617,808'Discharge-lamp lighting circuit'20036,617,809'Discharge lamp lighting circuit'20036,600,297'Power supply unit for regulating output voltage using a series regulator'20036,597,131'Discharge lamp lighting circuit'20036,583,585'Discharge lamp lighting circuit'20036,583,570'Discharge lamp device for vehicle'20036,583,587'Discharge lamp lighting circuit'20036,563,275'Discharge lamp lighting circuit'20036,552,501'Discharge lamp lighting circuit with protection circuit'20036,546,333'Car navigation apparatus, traffic information providing apparatus, program recording medium for car navigation apparatus, and program recording medium for traffic information providing apparatus'20036,534,930'Discharge lamp lighting circuit with protection circuit'20036,522,557'Inverter device'20036,504,316'Discharge lamp lighting circuit'20036,489,730'Discharge-lamp illumination circuit'20026,489,732'Discharge lamp lighting circuit'20026,486,620'Discharge lamp lighting circuit'20026,472,829'Discharge lamp lighting circuit'20026,472,830'Discharge lamp lighting circuit'20026,437,519'Discharge lamp lighting circuit'20026,437,518'Lighting circuit for an electric discharge lamp'20026,417,624'Lighting system for vehicle'20026,392,362'Discharge lamp lighting circuit'20026,366,030'Starter circuit configuration for a discharge lamp lighting circuit'20026,362,577'Discharge lamp lighting circuit'20026,351,074'Discharge lamp device for vehicle'20026,208,089'Discharge-lamp lighting circuit'20015,953,303'Recording and/or reproducing apparatus with elastic supporting mechanism for arranging a housing at an angle of inclination between a horizontal position and a vertical position'19995,844,731'Light reflecting plate'19985,757,753'Recording and/or reproducing apparatus with elastic supporting mechanism for arranging a housing at an angle of inclination between a horizontal position and a vertical position'19985,723,510'Method of manufacturing thermoplastic polyester foam sheet'19985,559,649'Disc cartridge loading apparatus in recording and/or reproducing apparatus'19965,458,832'Method for manufacturing a foamed plastics of saturated polyester using a cyclic tetramer as foaming agent'19955,224,534'Method of producing refractory metal or alloy materials'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2012Patents assigned to FURUKAWA ELECTRIC CO LTD (4)· patent assignee history
1995–2013Based in Tokyo, JP· patent location history
1996–2015Patents assigned to SONY CORP (8)· patent assignee history
1998–1999Based in Kanagawa, JP· patent location history
2001–2020Patents assigned to KOITO MFG CO LTD (120)· patent assignee history
2001–2020Based in Shizuoka, JP· patent location history
2003–2018Based in Chiba, JP· patent location history
2012–2015Patents assigned to ITO MASAYASU (18)· patent assignee history
2015Patents assigned to KIKUCHI SATOSHI (4)· patent assignee history
2016–2018Based in Mie, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOITO MFG CO LTD1202001–2020
ITO MASAYASUself182012–2015
SONY CORP81996–2015
FURUKAWA ELECTRIC CO LTD41995–2012
KIKUCHI SATOSHI42015
Locations
LocationPatentsSpan
Shizuoka, JP1202001–2020
Chiba, JP72003–2018
Tokyo, JP61995–2013
Mie, JP32016–2018
Kanagawa, JP21998–1999