P

Inventor

TOKUNAGA HIROSHI

JP62 patents
⚠️ This page may combine multiple inventors who share the name “TOKUNAGA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SONY CORP

24 patents
US6109740AAug 29, 2000

Method and apparatus for supplying ink to a printer

SONY CORP66 citations96
US6095630AAug 1, 2000

Ink-jet printer and drive method of recording head for ink-jet printer

SONY CORP76 citations95
US6631963B1Oct 14, 2003

Method of driving print head in ink jet printer and ink jet printer

SONY CORP26 citations93
US6431691B1Aug 13, 2002

Piezoelectric actuator

SONY CORP37 citations93
US6871941B2Mar 29, 2005

Print head, manufacturing method therefor, and printer

SONY CORP23 citations92
US6817699B2Nov 16, 2004

Printer

SONY CORP24 citations92
US6663223B2Dec 16, 2003

Print head, manufacturing method therefor and printer

SONY CORP16 citations92
US6637856B2Oct 28, 2003

Inkjet head and inkjet printer

SONY CORP40 citations92
US6494554B1Dec 17, 2002

Apparatus and method for driving recording head for ink-jet printer

SONY CORP23 citations92
US6283568B1Sep 4, 2001

Ink-jet printer and apparatus and method of recording head for ink-jet printer

SONY CORP46 citations91
US7251883B2Aug 7, 2007

Electronic-component alignment method and apparatus therefor

SONY CORP17 citations89
US7216111B2May 8, 2007

Accounting apparatus, accounting method, and computer-readable program storage medium for storing program having accounting function

SONY CORP11 citations84
US6938980B2Sep 6, 2005

Image forming apparatus and its control method

SONY CORP12 citations84
US7594319B2Sep 29, 2009

Electronic-component alignment method

SONY CORP10 citations81
US7373305B2May 13, 2008

Accounting apparatus, accounting method, and computer-readable program storage medium for storing program having accounting function

SONY CORP7 citations74
US6932464B2Aug 23, 2005

Piezoelectric actuator and its manufacturing method and ink-jet printhead

SONY CORP5 citations73
US6672714B2Jan 6, 2004

Ink-jet printhead

SONY CORP7 citations73
US5689786ANov 18, 1997

Image forming apparatus having endless belt photosensitive member in which the solidified developer becomes molten

SONY CORP9 citations73
US7997679B2Aug 16, 2011

Image forming apparatus and controlling method therefor

SONY CORP2 citations63
US7474435B2Jan 6, 2009

Connection apparatus, connecting method, and storage medium for storing computer-readable program having connecting functions

SONY CORP2 citations63
US7156485B2Jan 2, 2007

Liquid discharge head, cleaning method thereof, and liquid discharge apparatus

SONY CORP3 citations63
US5826149AOct 20, 1998

Developing device employing a liquid developer and picture forming device having such developing device

SONY CORP5 citations63
US7150514B2Dec 19, 2006

Print head, manufacturing method therefor, and printer

SONY CORP2 citations62
US7100254B2Sep 5, 2006

Method of manufacturing an ink-jet printhead

SONY CORP3 citations62

KONISHIROKU PHOTO IND

14 patents

FUJITSU LTD

6 patents

TOKYO JUKI INDUSTRIAL CO LTD

2 patents

HITACHI LTD

1 patent

NIPPON TELEGRAPH & TELEPHONE

1 patent

FUJITSU MEDIA DEVICES LTD

1 patent

GRAPHTEC KK

1 patent

Showing the top 50 of 62 patents by PatentIndex Score.