Inventor

Akihiro Fujita

Inventor

Hamamatsu, JP

Overview

1987–2020

Patent span

Physics

Primary field (CPC G)

Patents· 57 as inventor

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

G10Hprimary

G10HElectrophonic musical instruments10%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%

H04NPictorial communication, e.g. television6%

H04SStereophonic systems6%

B41JTypewriters5%

G06FElectric digital data processing5%

A61BDiagnosis4%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles4%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general4%

G05GControl devices or systems insofar as characterised by mechanical features only4%

PatentTitleYear

10,725,650Handwritten music sign recognition device and program2020 9,027,699'Speaker diaphragm, speaker, and production method of speaker diaphragm'2015 8,704,067'Musical score playing device and musical score playing program'2014 8,695,967'Sheet feeder and image forming apparatus including same'2014 8,452,044'Printed matter, image processing apparatus, printed matter authenticity determination apparatus, image processing method, printed matter authenticity determination method, and program'2013 8,186,824'Image forming apparatus with leading-edge detection sensor'2012 8,175,298'Audio output system control method and audio output system'2012 8,151,562'Exhaust device of V-type engine for vehicle'2012 8,131,128'Audiovisual system and control method thereof'2012 8,074,448'Exhaust device of V-type engine for vehicle'2011 8,038,921'Process for producing molded object with embedded member'2011 7,997,376'Exhaust system for a vehicle'2011 7,986,031'Resin molding part and manufacturing method thereof'2011 7,950,334'Ground coil device for magnetic levitation railway and method for manufacture thereof'2011 7,950,797'Image forming apparatus'2011 7,931,119'Support structure for exhaust pipe'2011 7,926,264'Vehicle exhaust system'2011 7,891,657'Sheet feeder, image forming apparatus, and sheet feeding method, utilizing sheet deformation prevention member'2011 7,849,959'Exhaust pipe structure for vehicle'2010 7,767,899'Electronic musical instrument'2010 7,713,197'Pressure measuring method, pressure measuring device, and tonometer'2010 7,712,892'Image forming apparatus'2010 7,611,138'Paper feeder and image forming apparatus using the same'2009 7,578,242'Magnetic levitation transportation system ground coil unit and manufacturing method thereof'2009 7,505,714'Image forming device'2009 7,476,797'Resonance generator'2009 7,431,422'Head cleaner and image forming apparatus'2008 6,893,128'Unit for obtaining and displaying fundus image'2005 6,888,751'Nonvolatile semiconductor memory device'2005 6,556,479'Nonvolatile semiconductor memory device'2003 6,507,657'Stereophonic sound image enhancement apparatus and stereophonic sound image enhancement method'2003 6,480,415'Nonvolatile semiconductor memory device'2002 6,440,978'Therapeutic agent for dermatitis'2002 6,430,294'Sound image localization method and apparatus, delay amount control apparatus, and sound image control apparatus with using delay amount control apparatus'2002 6,326,948'Input device'2001 6,300,940'Input device for a computer and the like and input processing method'2001 6,153,876'Optical sensor with concave mirror'2000 6,091,894'Virtual sound source positioning apparatus'2000 6,079,485'Vehicle air-conditioning system with seat heating and cooling device'2000 6,079,708'Sheet feeding apparatus with skew correction for fed sheets'2000 6,060,337'Photoreflective detector including a light emitting element and a light receiving element located at different distances from an object reflecting light from the emitting element'2000 6,035,045'Sound image localization method and apparatus, delay amount control apparatus, and sound image control apparatus with using delay amount control apparatus'2000 5,995,631'Sound image localization apparatus, stereophonic sound image enhancement apparatus, and sound image control system'1999 5,943,233'Input device for a computer and the like and input processing method'1999 5,921,214'Intake device for an internal combustion engine'1999 5,884,860'Rolled paper feeding apparatus which provides a constant torque for uncurling paper and a torque limiting device therefor'1999 5,811,797'Photoreflective detector including a light emitting element and a light recieving element located at different distances from an object reflecting light from the emitting element'1998 5,471,008'MIDI control apparatus'1995 5,382,749'Waveform data processing system and method of waveform data processing for electronic musical instrument'1995 5,223,654'Electronic percussion device for generating a percussion waveform using shock strength and vibration of a batter head'1993 5,182,639'Real-time analytic pseudocolor encoder system'1993 4,993,306'Device for correcting timing of music playing information for use in music auto play device'1991 4,938,584'Ophthalmic diagnostic method and apparatus'1990 4,830,494'Method and apparatus for measuring particles in a fluid'1989 4,781,658'Power transmission mechanism'1988 4,692,012'Automatic focus adjustment apparatus'1987 4,668,068'Automatic focus adjustment apparatus'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2010Patents assigned to KOWA CO (6)· patent assignee history

1991–2014Patents assigned to KAWAI MUSICAL INSTR MFG CO (12)· patent assignee history

1991–1995Based in Iwata, JP· patent location history

1993–2015Patents assigned to FUJITA AKIHIRO (8)· patent assignee history

1998–2001Patents assigned to SHARP KK (6)· patent assignee history

1999–2010Patents assigned to RICOH KK (6)· patent assignee history

1999–2020Based in Hamamatsu, JP· patent location history

2000–2014Based in Kanagawa, JP· patent location history

2009–2015Based in Chiyoda-ku, JP· patent location history

2010–2012Based in Shizuoka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KAWAI MUSICAL INSTR MFG CO	12	1991–2014
FUJITA AKIHIROself	8	1993–2015
KOWA CO	6	1987–2010
RICOH KK	6	1999–2010
SHARP KK	6	1998–2001

Locations

Location	Patents	Span
Hamamatsu, JP	11	1999–2020
Kanagawa, JP	8	2000–2014
Shizuoka, JP	6	2010–2012
Iwata, JP	4	1991–1995
Chiyoda-ku, JP	3	2009–2015