Inventor

Yumio Matsumoto

Inventor

Kasugai, JP

Overview

1989–2021

Patent span

Physics

Primary field (CPC G)

Patents· 40 as inventor

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

G03Bprimary

G03BApparatus or arrangements for taking photographs or for projecting or viewing them36%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices33%

G03GElectrography10%

G03DApparatus for processing exposed photographic materials9%

B41JTypewriters5%

Y10TTechnical subjects covered by former us classification3%

G06KGraphical data reading2%

H04NPictorial communication, e.g. television2%

G03CPhotosensitive materials for photographic purposes1%

G11CStatic stores1%

PatentTitleYear

10,989,986Shutter unit and imaging apparatus2021 10,886,001Semiconductor-product testing device, method for testing semiconductor product, and semiconductor product2021 6,476,846'Multi-beam scanner and image forming apparatus including the same'2002 5,126,781'Image recording apparatus'1992 5,093,683'Apparatus for forming an image sheet with adhesive tape'1992 5,089,838'Pressure developing device'1992 5,049,920'Photocopying method and apparatus'1991 5,049,919'Image recording apparatus having reversal sheet feeding device and control means for starting image recording operation in connection with the reversal sheet feed'1991 5,049,921'Sheet cartridge and image recording apparatus using the sheet cartridge'1991 5,047,798'Thermal fixing unit having gas purification means'1991 5,023,654'Thermal fixing device for image recording apparatus'1991 4,994,642'Sheet heating device'1991 4,992,822'Optical printing system'1991 4,984,016'Cassette for photo-sensitive recording medium'1991 4,981,433'Sheet heating device'1991 4,972,225'Sheet heating device'1990 4,965,592'Image processing apparatus for reproducing images on projector screen and photosensitive medium'1990 4,958,781'Cassette for photo-sensistive recording medium'1990 4,959,682'Copying apparatus'1990 4,959,529'Sheet heating device'1990 4,945,374'Pressure developing device'1990 4,942,423'Sheet heating device'1990 4,939,536'Thermal fixing device in an image recording apparatus'1990 4,933,685'Image transfer system with preliminary-exposure device'1990 4,920,374'Picture recording apparatus'1990 4,912,506'Image recording apparatus having exposure unit'1990 4,908,652'Image recording apparatus having upper and lower sections separable from each other at medium exposing path'1990 4,908,653'Exposure system for image recording apparatus'1990 4,905,036'Image forming process and system, including heating step or device for increased density of images'1990 4,901,103'Image recording apparatus using pressure sensitive sheet'1990 4,897,334'Photo-sensitive recording medium having light-shielding means on opposite side edges of the film'1990 4,894,680'Image recording apparatus'1990 4,884,098'Image recording apparatus'1989 4,878,084'Method and device for feeding sheet in image recording apparatus'1989 4,870,444'Copying apparatus'1989 4,870,451'Image recording apparatus'1989 4,866,473'Thermal fixing device for use in recording apparatus'1989 4,864,356'Exposure device for image recording apparatus'1989 4,851,881'Optical printing system'1989 4,810,614'Method of recording information on photosensitive and pressure-sensitive sheet utilizing mask original form'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2002Patents assigned to BROTHER IND LTD (37)· patent assignee history

1989–2002Based in Kasugai, JP· patent location history

1989–1991Based in Nagoya, JP· patent location history

1989–1991Based in Aichi, JP· patent location history

1990Patents assigned to AKAO MICHITOSHI (1)· patent assignee history

1990Patents assigned to ASANO YUKI (1)· patent assignee history

1990Patents assigned to HAYAKAWA KIYOHARU (1)· patent assignee history

2021Patents assigned to CANON KK (1)· patent assignee history

2021Based in Yokohama, JP· patent location history

2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BROTHER IND LTD	37	1989–2002
AKAO MICHITOSHI	1	1990
ASANO YUKI	1	1990
CANON KK	1	2021
HAYAKAWA KIYOHARU	1	1990

Locations

Location	Patents	Span
Kasugai, JP	32	1989–2002
Nagoya, JP	4	1989–1991
Aichi, JP	2	1989–1991
Yokohama, JP	1	2021
Tokyo, JP	1	2021