Inventor

Masashi Hara

Inventor

Ibaraki, JP

Overview

39→

Patents

1989–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 39 as inventor

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

B41Jprimary

B41JTypewriters17%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables14%

G03GElectrography8%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons4%

G06FElectric digital data processing4%

Y10TTechnical subjects covered by former us classification4%

B22FWorking metallic powder3%

C22CAlloys3%

G02BOptical elements, systems or apparatus3%

H01FMagnets3%

PatentTitleYear

10,535,454Compressed powder core, powders for compressed power core, and method for producing compressed powder core2020 10,497,500Powder magnetic core, powder for magnetic cores, and methods of manufacturing them2019 10,407,645Coated [alpha]-sulfofatty acid alkyl ester salt particle group, method for producing same, and powder detergent2019 10,316,500Touch detection device for water handling equipment, and faucet apparatus including the same2019 10,131,164Printer with different conveyance speeds of recording medium2018 10,040,892Polyurethane elastic yarn and production method thereof2018 9,944,483Printer2018 9,885,993'Printer'2018 9,827,791Printer with lower conveyer2017 9,665,812'Printer with paper conveyance control upon paper jam'2017 9,404,199'Polyurethane elastic yarn and method for producing same'2016 9,394,129'Printing machine and feeding method for printing machines'2016 9,358,816'Printer having duplex printing function'2016 9,327,530'Printer with duplex printing function'2016 9,120,959'Chemical thermal energy storage material structure, method of producing the same, and chemical heat accumulator'2015 9,027,699'Speaker diaphragm, speaker, and production method of speaker diaphragm'2015 8,998,198'Sheet sorting device'2015 8,861,989'Printer capable of resolving a jam of a print medium'2014 8,814,312'Image forming apparatus'2014 8,783,815'Printer'2014 8,783,979'Print media transfer schedule setting unit and method for image forming apparatus'2014 8,585,048'Printing device'2013 8,503,922'Duplex printing apparatus with variable speed section'2013 8,411,308'Printing machine and ejection control method for the same'2013 8,346,154'Transfer control mechanism for printer and transfer control method'2013 8,277,941'Elastic polyurethane yarn and method of manufacturing the same'2012 8,141,872'Printing apparatus having discharge speed control'2012 8,047,542'Printing apparatus capable of handling paper size error'2011 8,038,144'Image forming apparatus'2011 7,516,772'Method of forming a product of metal-based composite material'2009 7,216,746'Brake drum and process for manufacturing the same'2007 6,973,243'Cable'2005 6,915,050'Identification member in slots in the core of an optical fiber cable'2005 6,598,662'Molten steel supplying apparatus for continuous casting and continuous casting method therewith'2003 6,324,362'Image forming apparatus'2001 5,816,902'Abrasive sheet and method of manufacturing same'1998 5,602,650'Information processing apparatus equipped with detachable image reader'1997 5,307,297'Data processor with wireless auxiliary input apparatus'1994 4,804,952'Display device interface circuit'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1997Patents assigned to SHARP KK (3)· patent assignee history

1989–1997Based in Nara, JP· patent location history

1998–2019Based in Tokyo, JP· patent location history

2001–2018Patents assigned to RISO KAGAKU CORP (20)· patent assignee history

2011–2018Based in Ibaraki, JP· patent location history

2012–2018Patents assigned to HARA MASASHI (14)· patent assignee history

2012–2013Patents assigned to MAEDA YUKIHIRO (3)· patent assignee history

2012–2018Patents assigned to TANAKA TOSHIHIRO (3)· patent assignee history

2016–2018Based in Shiga, JP· patent location history

2019–2020Based in Nagakute-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RISO KAGAKU CORP	20	2001–2018
HARA MASASHIself	14	2012–2018
MAEDA YUKIHIRO	3	2012–2013
SHARP KK	3	1989–1997
TANAKA TOSHIHIRO	3	2012–2018

Locations

Location	Patents	Span
Ibaraki, JP	19	2011–2018
Nara, JP	3	1989–1997
Nagakute-shi, JP	2	2019–2020
Tokyo, JP	2	1998–2019
Shiga, JP	2	2016–2018