Inventor

Fumio Koyama

Inventor

Shiojiri, JP

Overview

1978–2021

Patent span

Physics

Primary field (CPC G)

Patents· 50 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 information22%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light16%

H04NPictorial communication, e.g. television14%

B82YSpecific uses or applications of nanostructures5%

G06TImage data processing or generation, in general5%

G06FElectric digital data processing4%

A61BDiagnosis2%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein2%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them2%

G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes2%

PatentTitleYear

11,079,541Optical deflection device and LIDAR apparatus2021 10,265,021Biological information processing device, program, and biological information processing method2019 9,816,851'Eddy current mold level measuring device and mold level measuring method'2017 9,808,205'Abnormality prediction device, abnormality prediction system, abnormality prediction method, biological information measuring device, biological information measuring system, and warning notification method'2017 9,806,498'Vertical-cavity surface-emitting laser diode and optical transmission apparatus'2017 9,350,139'Vertical-cavity surface-emitting laser diode and optical transmission apparatus'2016 9,300,968'Image processing device, image display device, and projector'2016 9,166,370'Vertical cavity surface emitting laser, vertical cavity surface emitting laser apparatus, optical transmission apparatus, and information processing apparatus'2015 9,120,639'Document processing device and document processing method'2015 8,843,542'Information processing device, arithmetic processing method, and electronic apparatus'2014 8,659,614'Image display apparatus'2014 8,514,156'Dynamic adjustment of counter electrode voltage of liquid crystal panel according to illumination light control'2013 8,421,744'Information display having separate and detachable units'2013 8,334,934'Image display device and image display method'2012 8,325,397'Image processing device and image display device'2012 8,228,342'Image display device, highlighting method'2012 8,116,344'Red surface emitting laser element, image forming device, and image display apparatus'2012 8,106,900'Control method for information display device and an information display device'2012 8,031,753'Red surface emitting laser element, image forming device, and image display apparatus'2011 7,990,591'Image processing device and image display device'2011 7,967,450'Light amount control device and projector'2011 7,911,544'Image display device and image display method'2011 7,890,621'Information processing system, host device, and program for causing computer to execute information processing method including communication completion judging'2011 7,809,040'Red surface emitting laser element, image forming device, and image display apparatus'2010 7,728,847'Color conversion device and image display apparatus having the same'2010 7,659,874'Driving device for liquid crystal panel and image display apparatus'2010 7,598,925'Information display and information display system'2009 7,535,435'Projector'2009 7,450,776'Gradation attributes control according to characteristics of image'2008 7,359,942'Apparatus, method, network system, recording medium and computer program for processing transmitted information'2008 7,176,909'Color correction circuit and image display apparatus including the same'2007 7,141,441'Surface emitting semiconductor laser and manufacturing method thereof'2006 7,070,286'Projector with projection lens having a zoom function'2006 7,050,074'Color correction in image display'2006 6,990,128'Surface emitting semiconductor laser and manufacturing method thereof'2006 6,870,552'Adjustment of input-output characteristics of image display apparatus'2005 6,756,991'Image display apparatus and color signal adjustment device used therein'2004 6,604,682'Method of and apparatus for reading a two-dimensional bar code symbol and data storage medium'2003 6,590,917'Surface emitting laser and surface emitting laser array'2003 6,449,300'Surface-emitting laser'2002 6,409,347'Projector, circuit board, and electronic device provided with said circuit board'2002 6,144,354'Image display apparatus'2000 5,990,979'Gamma correction circuit and video display apparatus using the same'1999 5,940,058'Clamp and gamma correction circuit, and image display apparatus and electronic machine employing the same'1999 5,673,241'Focus detection mechanism and optical head and optical storage device that use it'1997 5,663,824'Optical modulators as monolithically integrated optical isolators'1997 5,432,123'Method for preparation of monolithically integrated devices'1995 5,289,486'Semiconductor luminous element and superlattice structure'1994 5,091,756'Superlattice structure'1992 4,083,560'Target arrangement for a light pulse beam comprising crosswise arranged and grouped phototransistors'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2017Patents assigned to TOKYO INST TECH (5)· patent assignee history

1992–2021Based in Tokyo, JP· patent location history

1997–2019Patents assigned to SEIKO EPSON CORP (31)· patent assignee history

1997–2009Based in Suwa, JP· patent location history

2002–2016Based in Shiojiri, JP· patent location history

2003–2017Patents assigned to FUJI XEROX CO LTD (4)· patent assignee history

2003–2012Based in Yokohama, JP· patent location history

2009–2019Based in Hara-mura, JP· patent location history

2010–2012Patents assigned to CANON KK (2)· patent assignee history

2012–2016Patents assigned to KOYAMA FUMIO (12)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SEIKO EPSON CORP	31	1997–2019
KOYAMA FUMIOself	12	2012–2016
TOKYO INST TECH	5	1992–2017
FUJI XEROX CO LTD	4	2003–2017
CANON KK	2	2010–2012

Locations

Location	Patents	Span
Shiojiri, JP	18	2002–2016
Tokyo, JP	7	1992–2021
Hara-mura, JP	6	2009–2019
Yokohama, JP	6	2003–2012
Suwa, JP	6	1997–2009