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Inventor

Seiki Yamaguchi

Inventor
Shiga, JP

Overview

8→
Patents
1996–2003
Patent span
Physics
Primary field (CPC G)

Patents· 8 as inventor

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

A61Bprimary
A61BDiagnosis30%
G02BOptical elements, systems or apparatus20%
H03KPulse technique20%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light10%
G01KMeasuring temperature10%
H10DInorganic electric semiconductor devices10%
PatentTitleYear
6,545,515'Semiconductor switch having a voltage detection function'20036,538,480'Load driving device'20036,534,829'Semiconductor device and method for fabricating the same'20036,088,208'Electronic device, electronic switching apparatus including the same, and production method thereof'20005,971,917'Endoscope having washing ports'19995,888,191'Conduit-separated endoscope system'19995,810,718'Coupler structure for tube units of endoscopes'19985,565,990'Color temperature meter for use in photographing'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996Patents assigned to MINOLTA CAMERA KK (1)· patent assignee history
1996Based in Toyohashi, JP· patent location history
1998–1999Patents assigned to FUJI PHOTO OPTICAL CO LTD (3)· patent assignee history
1998–1999Based in Omiya, JP· patent location history
2000Patents assigned to MATSUSHITA ELECTRONICS CORP (1)· patent assignee history
2000–2003Based in Shiga, JP· patent location history
2003Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJI PHOTO OPTICAL CO LTD31998–1999
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32003
MATSUSHITA ELECTRONICS CORP12000
MINOLTA CAMERA KK11996
Locations
LocationPatentsSpan
Shiga, JP42000–2003
Omiya, JP31998–1999
Toyohashi, JP11996