Inventor

Fumihiko Kato

Inventor

Yamagata, JP

Overview

33→

Patents

1983–2013

Patent span

Physics

Primary field (CPC G)

Patents· 33 as inventor

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

G09Gprimary

G09GArrangements or circuits for control of indicating devices using static means to present variable information14%

H03FAmplifiers14%

G11BInformation storage based on relative movement between record carrier and transducer10%

Y10TTechnical subjects covered by former us classification8%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling5%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%

H04NPictorial communication, e.g. television5%

C03CChemical composition of glasses, glazes or vitreous enamels3%

F27BFurnaces, kilns, ovens or retorts in general3%

F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace3%

PatentTitleYear

8,529,251'Rotary kiln and product'2013 8,500,444'Rotary kiln and battery material manufactured by the rotary kiln'2013 8,222,957'Differential amplifier circuit, display panel driver, and display device'2012 8,107,787'Recording and reproducing device and recording and reproducing method'2012 7,911,508'Recording/reproducing apparatus and recording/reproducing apparatus control method'2011 7,859,579'Recording and reproducing device and recording and reproducing method'2010 7,683,871'Display control circuit'2010 7,432,903'Common inversion driving type liquid crystal display device and its driving method capable of suppressing color errors'2008 7,271,792'Display control circuit'2007 7,248,254'Gamma correcting circuit and panel drive apparatus equipped with gamma correcting circuit'2007 7,173,597'Signal-adjusted LCD control unit'2007 7,098,904'Display control circuit and display device'2006 7,038,525'Analog switching circuit and gradation selector circuit'2006 6,829,747'Editing apparatus and editing method'2004 6,821,639'Metal substrate for carrying catalyst and method for manufacturing the same'2004 6,806,855'Liquid crystal panel driving circuit and method of driving a liquid crystal panel'2004 6,771,887'Recording/reproducing apparatus and recording/reproducing method'2004 6,650,341'Liquid crystal driving method and liquid crystal driving circuit for correcting'2003 6,581,283'Method for forming pin-form wires and the like'2003 6,424,219'Operational amplifier'2002 6,316,999'Operational amplifier'2001 6,140,989'Image signal control circuit which controls image signal for displaying image on multi-gradation liquid crystal display and control method therefor'2000 6,100,762'Operational amplifier having a wide input/output range and an improved slew rate'2000 6,067,037'Digital-to-analog converter implemented by simple switched capacitor array and method for controlling thereof'2000 6,042,524'Tool storage device having tilting mechanism'2000 5,908,374'Tool changer for machine tool'1999 5,883,535'Slew rate controllable amplification circuit'1999 5,831,480'Operational amplifier adopted for input and output in wide ranges for driving a large load'1998 5,670,910'Operational amplifier free from dispersion in quiescent current consumed by output stage'1997 5,655,862'Machine tool spindle'1997 4,896,225'Tape recording and/or reproducing apparatus'1990 4,639,080'Optical fibers coated with modified 1,4-polybutadienes'1987 4,396,645'Coated optical glass fibers and method for production thereof'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2012Patents assigned to SONY CORP (6)· patent assignee history

1990–2012Based in Kanagawa, JP· patent location history

1997–2002Patents assigned to NEC CORP (8)· patent assignee history

1997–2000Patents assigned to BROTHER IND LTD (3)· patent assignee history

1997–2004Based in Tokyo, JP· patent location history

1999–2000Based in Nagoya, JP· patent location history

2000–2010Based in Yamagata, JP· patent location history

2003–2010Patents assigned to NEC ELECTRONICS CORP (9)· patent assignee history

2012–2013Patents assigned to KATO FUMIHIKO (4)· patent assignee history

2013Based in Toki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NEC ELECTRONICS CORP	9	2003–2010
NEC CORP	8	1997–2002
SONY CORP	6	1990–2012
KATO FUMIHIKOself	4	2012–2013
BROTHER IND LTD	3	1997–2000

Locations

Location	Patents	Span
Yamagata, JP	11	2000–2010
Kanagawa, JP	7	1990–2012
Tokyo, JP	6	1997–2004
Toki, JP	2	2013
Nagoya, JP	2	1999–2000