Inventor

Masatsugu Nishi

Inventor

Katsuta, JP

Overview

21→

Patents

1987–2002

Patent span

Electricity

Primary field (CPC H)

Patents· 21 as inventor

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

H05Hprimary

H05HPlasma technique50%

G01SRadio direction-finding10%

A61NElectrotherapy7%

E21BEarth or rock drilling7%

F16LPipes7%

B82YSpecific uses or applications of nanostructures3%

G01VGeophysics3%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices3%

G06VImage or video recognition or understanding3%

H05GX-ray technique3%

PatentTitleYear

6,361,841'Oil well pipe'2002 6,174,000'Screw joint for oil well piping'2001 5,991,360'Laser plasma x-ray source, semiconductor lithography apparatus using the same and a method thereof'1999 5,789,875'Circular accelerator, method of injection of charged particle thereof, and apparatus for injection of charged particle thereof'1998 5,600,213'Circular accelerator, method of injection of charged particles thereof, and apparatus for injection of charged particles thereof'1997 5,576,602'Method for extracting charged particle beam and small-sized accelerator for charged particle beam'1996 5,477,056'Circular accelerator, operation method thereof, and semiconductor irradiation system'1995 5,436,537'Circular accelerator and a method of injecting beams therein'1995 5,363,008'Circular accelerator and method and apparatus for extracting charged-particle beam in circular accelerator'1994 5,285,166'Method of extracting charged particles from accelerator, and accelerator capable of carrying out the method, by shifting particle orbit'1994 5,168,241'Acceleration device for charged particles'1992 5,081,456'Method of detecting unknown object and apparatus therefor'1992 5,001,437'Electron storage ring'1991 5,001,438'Charged particle accelerator and method of cooling charged particle beam'1991 4,998,073'Wake field accelerator'1991 4,992,745'Method of synchrotron acceleration and circular accelerator'1991 4,916,404'Electron storage ring'1990 4,812,774'Electron beam stabilizing method for electron storing ring, and electron storing ring system'1989 4,733,132'High energy accelerator'1988 4,706,031'Method and system for detecting an object with a radio wave'1987 4,677,438'Method and apparatus for detecting an object or a condition indicating a defect in a medium'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1999Patents assigned to HITACHI LTD (19)· patent assignee history

1987–1998Based in Katsuta, JP· patent location history

1990–1991Patents assigned to NIPPON TELEGRAPH & TELEPHONE (2)· patent assignee history

1994Patents assigned to NAT INST RADIOLOG (1)· patent assignee history

1999Based in Hitachinaka, JP· patent location history

2001–2002Patents assigned to NIPPON KOKAN KK (2)· patent assignee history

2001Patents assigned to MITSUBISHI CORP (1)· patent assignee history

2001–2002Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	19	1987–1999
NIPPON KOKAN KK	2	2001–2002
NIPPON TELEGRAPH & TELEPHONE	2	1990–1991
MITSUBISHI CORP	1	2001
NAT INST RADIOLOG	1	1994

Locations

Location	Patents	Span
Katsuta, JP	18	1987–1998
Tokyo, JP	2	2001–2002
Hitachinaka, JP	1	1999