Inventor

Kunio Takada

Inventor

Ibaraki, JP

Overview

26→

Patents

1989–2010

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 26 as inventor

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

F04Dprimary

F04DNon-positive-displacement pumps17%

F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g13%

E03FSewers12%

Y10TTechnical subjects covered by former us classification10%

E02BHydraulic engineering7%

Y02ATechnologies for adaptation to climate change7%

C23CCoating metallic material6%

F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines6%

F16CShafts6%

G11BInformation storage based on relative movement between record carrier and transducer5%

PatentTitleYear

7,755,267'Electron emitting device having electroconductive thin film and high resistivity sheet'2010 7,482,742'Electron source substrate with high-impedance portion, and image-forming apparatus'2009 6,132,136'Drainage water pumping station and method for operating the same'2000 6,102,618'Large-depth underground drainage facility and method of running same'2000 6,007,878'Process for producing an optical recording medium having a protective layer formed using a plasma processing device'1999 5,909,982'Large-depth underground drainage facility and method of running same'1999 5,839,880'Bearing unit, drainage pump and hydraulic turbine each incorporating the bearing unit, and method of manufacturing the bearing unit'1998 5,812,421'System for cooperatively operating river management facilities'1998 5,752,785'Drainage pump station and drainage operation method for drainage pump station'1998 5,733,064'Drainage water pumping station and method for operating the same'1998 5,668,531'Synchronized alarm holding system'1997 5,639,165'Method of operating pump and bearing device for pump'1997 5,634,740'Large-depth underground drainage facility and method of running same'1997 5,603,587'Drainage water pumping station and method for operating the same'1997 5,589,244'Magneto-optical disc'1996 5,525,379'Method for manufacturing an optical recording medium'1996 5,498,105'Drainage water pumping station and method for operating the same'1996 5,487,621'Large-depth underground drainage facility and method of running same'1996 5,458,460'Drainage pump and a hydraulic turbine incorporating a bearing member, and a method of manufacturing the bearing member'1995 5,360,289'Drainage water pumping station and method for operating the same'1994 5,346,316'Bearing unit, drainage pump and hydraulic turbine each incorporating the bearing unit'1994 5,330,693'Process and apparatus for injection-molding product having minute surface pattern and central hole'1994 5,297,927'Vertical shaft type pump'1994 5,160,216'Drainage distribution amount determining method and drainage system'1992 4,892,692'Process for producing substrate for optical disk by annealing substrate with gradient double refraction distribution'1990 4,826,271'Rotational polygon mirror and method of manufacturing the same'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2010Patents assigned to CANON KK (8)· patent assignee history

1990–1997Based in Kawasaki, JP· patent location history

1992–2000Patents assigned to HITACHI LTD (17)· patent assignee history

1992–2000Based in Ibaraki, JP· patent location history

1996–2000Based in Iwama, JP· patent location history

1996–1999Based in Yokohama, JP· patent location history

1997Patents assigned to FUJITSU LTD (1)· patent assignee history

2009–2010Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	17	1992–2000
CANON KK	8	1989–2010
FUJITSU LTD	1	1997

Locations

Location	Patents	Span
Ibaraki, JP	11	1992–2000
Iwama, JP	5	1996–2000
Yokohama, JP	3	1996–1999
Kawasaki, JP	3	1990–1997
Kanagawa, JP	2	2009–2010