Inventor

Kazuo Takei

Inventor

Yokohama, JP

Overview

15→

Patents

1989–2014

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 15 as inventor

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

F04Dprimary

F04DNon-positive-displacement pumps23%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants23%

C02FTreatment of water, waste water, sewage, or sludge7%

G01NInvestigating or analysing materials by determining their chemical or physical properties7%

G06FElectric digital data processing7%

A61LMethods or apparatus for sterilising materials or objects in general3%

B01LChemical or physical laboratory apparatus for general use3%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general3%

B29CShaping or joining of plastics3%

G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light3%

PatentTitleYear

8,889,349'Method for testing microorganism or the like and testing apparatus therefor'2014 8,404,480'Microorganism testing device and microorganism testing chip'2013 7,018,546'Water treatment method and water treatment device'2006 6,224,826'Sterilizing method and apparatus'2001 5,947,680'Turbomachinery with variable-angle fluid guiding vanes'1999 5,927,939'Turbomachine having variable angle flow guiding device'1999 5,913,248'Surge detection device and turbomachinery therewith'1999 5,873,696'Turbomachinery having variable angle flow guiding device'1999 5,851,103'Turbomachinery with variable angle fluid guiding devices'1998 5,683,223'Surge detection device and turbomachinery therewith'1997 5,618,160'Turbomachinery with variable angle fluid guiding devices'1997 5,559,939'Method and apparatus for preparing a document containing information in real mathematical notation'1996 5,469,189'Display apparatus and method with multi-window function'1995 5,146,553'Document editing apparatus which activates application programs in response to document data input'1992 4,833,616'Device for controlling operation of injection molder'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2006Patents assigned to HITACHI LTD (5)· patent assignee history

1992–1996Based in Ibaraki, JP· patent location history

1997–1999Patents assigned to EBARA CORP (7)· patent assignee history

1997–1999Based in Kanagawa, JP· patent location history

1999–2001Based in Yokohama, JP· patent location history

2006Based in Tokyo, JP· patent location history

2013–2014Patents assigned to HITACHI ENG SERVICE (2)· patent assignee history

2013–2014Patents assigned to KURIHARA MASAHIRO (2)· patent assignee history

2013–2014Patents assigned to NAKAMOTO HIDEKI (2)· patent assignee history

2013–2014Based in Tokai, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EBARA CORP	7	1997–1999
HITACHI LTD	5	1992–2006
HITACHI ENG SERVICE	2	2013–2014
KURIHARA MASAHIRO	2	2013–2014
NAKAMOTO HIDEKI	2	2013–2014

Locations

Location	Patents	Span
Yokohama, JP	4	1999–2001
Kanagawa, JP	4	1997–1999
Ibaraki, JP	3	1992–1996
Tokai, JP	2	2013–2014
Tokyo, JP	1	2006