Inventor

Kenichi Kugai

Inventor

Hitachinaka, JP

Overview

1992–2010

Patent span

Performing operations

Primary field (CPC B)

Patents· 15 as inventor

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

B41Jprimary

B41JTypewriters53%

G02BOptical elements, systems or apparatus16%

H02KDynamo-electric machines11%

B24BMachines, devices, or processes for grinding or polishing5%

F16CShafts5%

G03GElectrography5%

Y10TTechnical subjects covered by former us classification5%

PatentTitleYear

7,744,197'Method for manufacturing inkjet recording head of inkjet recording device'2010 7,651,203'Inkjet recording device, ejecting device provided therein, and method of calibrating ejection characteristic for droplet'2010 7,542,652'Multi-beam light source, method for manufacturing the same, light scanning unit using the same, and image forming apparatus using the same'2009 6,702,432'Configuration of inkjet head realizing uniform ink ejection performance'2004 6,682,179'Ink jet print head and method of production thereof'2004 6,679,589'Ink jet print head and method of production thereof'2004 6,457,222'Method of manufacturing ink jet print head'2002 6,378,972'Drive method for an on-demand multi-nozzle ink jet head'2002 6,264,310'Multi-nozzle ink jet head with dummy piezoelectric elements at both ends of a piezoelectric element array for controlling the flow of adhesive about the piezoelectric element array'2001 6,094,558'Transfer belt and electrophotographic apparatus'2000 5,903,078'Rotary polygon mirror motor'1999 5,434,695'Dynamic pressure bearing and rotary polygon mirror device with the bearing'1995 5,228,386'Print hammer assembly for dot line printer'1993 5,118,210'Print hammers of printing head in dot line printer'1992 5,107,628'Method of fabricating article having aspheric figure and tool for use in carrying out the method'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2002Patents assigned to HITACHI KOKI KK (9)· patent assignee history

1992Patents assigned to HITACHI LTD (1)· patent assignee history

1992–1993Based in Katsuta, JP· patent location history

1995–2000Based in Ibaraki, JP· patent location history

2001–2010Based in Hitachinaka, JP· patent location history

2004Patents assigned to HITACHI PRINTING SOLUTIONS LTD (3)· patent assignee history

2009–2010Patents assigned to RICOH PRINTING SYS LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI KOKI KK	9	1992–2002
HITACHI PRINTING SOLUTIONS LTD	3	2004
RICOH PRINTING SYS LTD	3	2009–2010
HITACHI LTD	1	1992

Locations

Location	Patents	Span
Hitachinaka, JP	9	2001–2010
Ibaraki, JP	3	1995–2000
Katsuta, JP	3	1992–1993