Inventor

Shigeki Yamakawa

Inventor

Tokyo, JP

Overview

2001–2008

Patent span

Performing operations

Primary field (CPC B)

Patents· 12 as inventor

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

B66Bprimary

B66BElevators85%

G01GWeighing8%

G06FElectric digital data processing8%

PatentTitleYear

7,419,032'Elevator monitoring terminal and elevator monitoring apparatus with multiple display screens displaying operational data, in-car image data and communication request data'2008 6,896,105'Elevator system including control panel within hoistway'2005 6,860,161'Weight detector for elevator'2005 6,631,788'Elevator system with safety installation'2003 6,488,126'Elevator control device'2002 6,405,834'Elevator maintenance/operation apparatus'2002 6,357,015'Data interface and high-speed communication system using the same'2002 6,321,877'Controlling apparatus for elevator with divided control panel'2001 6,311,801'Brake control apparatus with auxiliary power source means'2001 6,230,845'Moveable control panel for elevators'2001 6,230,846'Elevator apparatus with control panel located within elevator hoistway'2001 6,223,860'Control device for elevator'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2008Patents assigned to MITSUBISHI ELECTRIC CORP (11)· patent assignee history

2001–2008Based in Tokyo, JP· patent location history

2001Based in Marunouchi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI ELECTRIC CORP	11	2001–2008

Locations

Location	Patents	Span
Tokyo, JP	11	2001–2008
Marunouchi, JP	1	2001