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Inventor

Yuzo Morita

Inventor
Hitachi, JP

Overview

9→
Patents
1989–2012
Patent span
Performing operations
Primary field (CPC B)

Patents· 9 as inventor

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

B66Bprimary
B66BElevators50%
G01NInvestigating or analysing materials by determining their chemical or physical properties17%
H01RElectrically-conductive connections8%
H02JElectric power networks8%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
8,248,592'Defect inspection system'20127,872,743'Defect inspection system'20115,892,190'Method and system of controlling elevators and method and apparatus of inputting requests to the control system'19995,307,903'Method and system of controlling elevators and method and apparatus of inputting requests to the control system'19945,297,015'Power supply control system'19945,010,472'Customer participatory elevator control system'19914,989,694'Elevator group supervisory system'19914,947,965'Group-control method and apparatus for an elevator system with plural cages'19904,872,532'Signal transmission method and system in elevator equipment'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1999Patents assigned to HITACHI LTD (7)· patent assignee history
1989–1999Based in Hitachi, JP· patent location history
2011–2012Patents assigned to HITACHI HIGH TECH CORP (2)· patent assignee history
2011–2012Based in Hitachinaka, JP· patent location history
2012Patents assigned to MORITA YUZO (1)· patent assignee history
2012Patents assigned to TANIGUCHI KOICHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD71989–1999
HITACHI HIGH TECH CORP22011–2012
MORITA YUZOself12012
TANIGUCHI KOICHI12012
Locations
LocationPatentsSpan
Hitachi, JP71989–1999
Hitachinaka, JP22011–2012