Inventor

Katsumi Amakawa

Inventor

Osaka, JP

Overview

1986–2009

Patent span

Electricity

Primary field (CPC H)

Patents· 11 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television73%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them9%

G03GElectrography9%

G06FElectric digital data processing9%

PatentTitleYear

7,586,629'Printing system for allocating a plurality of image processing items between an image input device and an image output device'2009 5,799,139'Image formation processing system'1998 5,764,370'Enlargement and reduction apparatus for an image forming apparatus'1998 5,754,683'Image forming apparatus and gradation output adjusting method in image forming apparatus'1998 5,642,201'Electrographic copying machine'1997 5,539,539'Color converting circuit for use in an image forming apparatus'1996 5,398,109'Apparatus and method for correcting color image data according to a masking equation'1995 5,307,135'Color image forming apparatus having mono-color image forming function'1994 5,163,137'Copying system with a dual trunk serial communication system using an acknowledge line'1992 4,659,206'Photoconductive drum device for electrostatic copying machines or the like'1987 4,620,782'Automatic document feeder'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1998Patents assigned to MITA INDUSTRIAL CO LTD (10)· patent assignee history

1986–2009Based in Yamatotakada, JP· patent location history

1987–1995Based in Nara, JP· patent location history

1996–1998Based in Osaka, JP· patent location history

2009Patents assigned to SHARP KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITA INDUSTRIAL CO LTD	10	1986–1998
SHARP KK	1	2009

Locations

Location	Patents	Span
Osaka, JP	5	1996–1998
Yamatotakada, JP	3	1986–2009
Nara, JP	3	1987–1995