Inventor

Katsumi Yamaguchi

Inventor

Saitama, JP

Overview

46→

Patents

1983–2018

Patent span

Physics

Primary field (CPC G)

Patents· 46 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer22%

G02BOptical elements, systems or apparatus12%

C08LCompositions of macromolecular compounds8%

H05KPrinted circuits8%

G06KGraphical data reading7%

C08JWorking-up5%

H01RElectrically-conductive connections5%

B41JTypewriters4%

Y10TTechnical subjects covered by former us classification4%

B22DCasting of metals3%

PatentTitleYear

10,138,309Method for producing particulate polymer2018 8,916,794'Metal jet apparatus and jet method'2014 8,680,180'Process for producing modified epoxy resin'2014 8,368,822'Display apparatus for displaying an image'2013 8,344,054'Polymer nanocomposites including dispersed nanoparticles and inorganic nanoplatelets'2013 8,222,324'Process for producing modified epoxy resin'2012 7,537,470'Ejection mechanism and card connector'2009 7,485,680'Process for producing rubbery polymer particle and process for producing resin composition containing the same'2009 7,445,839'Foam sheet for car interior member, and car interior member'2008 7,396,876'Transparent and impact-resistant thermoplastic resin compositions'2008 7,083,442'PC card connector assembly'2006 6,869,017'Card connector'2005 6,757,173'Card connector assembly'2004 6,726,508'Card connector'2004 6,525,135'Modifier for methacrylic resin'2003 6,337,455'Process and apparatus for transforming metal material'2002 6,269,999'Semiconductor chip mounting method utilizing ultrasonic vibrations'2001 6,206,358'Book binding system'2001 6,171,122'Card connector'2001 6,133,566'Multiple beam scanning apparatus and light source unit therefor'2000 5,786,594'Multi-beam pitch adjustment system and method'1998 5,671,077'Multi-beam light source device and optical scanning apparatus using the multi-beam source device'1997 5,432,537'Optical recording apparatus capable of controlling optical power of laser diode array'1995 5,233,455'Scanning optical system'1993 5,209,427'Brake mechanism of magnetic recording and reproducing apparatus'1993 5,155,616'Scanning optical system'1992 5,005,928'Optical scanning system'1991 4,955,682'Scanning optical system'1990 4,953,171'Semiconductor laser source unit'1990 4,934,772'Light beam scanning lens and light beam scanning device'1990 4,906,061'Collimated light beam scanning method including curvature of field correction'1990 4,872,075'Tape loading mechanism in magnetic recording and reproducing apparatus'1989 4,835,636'Dustproof door mechanism'1989 4,828,158'Pinch roller driving mechanism'1989 4,825,312'Cassette loading mechanism'1989 4,797,758'Pinch roller driving mechanism'1989 4,764,827'Intermittent gear mechanism'1988 4,708,302'Mode switching over gear mechanism for reel'1987 4,511,940'Tape player having motor-driven tape-pack loading mechanism'1985 4,479,155'Auto-loading mechanism in a magnetic recording/reproducing apparatus'1984 4,458,276'Magnetic tape recording/reproducing apparatus with eject spring set by tape drive motor'1984 4,450,492'Interlocking gear control mechanism in magnetic tape recording/playing apparatus'1984 4,430,680'Reciprocating member control mechanism in tape player'1984 4,423,847'Tape reel driving mechanism'1984 4,423,445'Clutch system in a tape player'1983 4,403,265'Power loading/unloading mechanism for tape record/playback apparatus'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1993Patents assigned to CLARION CO LTD (16)· patent assignee history

1984–2014Patents assigned to YAMAGUCHI KATSUMI (7)· patent assignee history

1984–2009Based in Saitama, JP· patent location history

1987–1989Based in Tokyo, JP· patent location history

1990–2000Patents assigned to RICOH KK (11)· patent assignee history

1990–1991Based in Fuchu, JP· patent location history

1992–2013Based in Yokohama, JP· patent location history

2003–2018Patents assigned to KANEKA CORP (7)· patent assignee history

2003–2018Based in Hyogo, JP· patent location history

2004–2009Patents assigned to TYCO ELECTRONICS AMP KK (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CLARION CO LTD	16	1983–1993
RICOH KK	11	1990–2000
KANEKA CORP	7	2003–2018
YAMAGUCHI KATSUMIself	7	1984–2014
TYCO ELECTRONICS AMP KK	4	2004–2009

Locations

Location	Patents	Span
Saitama, JP	11	1984–2009
Tokyo, JP	7	1987–1989
Yokohama, JP	6	1992–2013
Hyogo, JP	5	2003–2018
Fuchu, JP	5	1990–1991