Inventor

Masaaki Maruyama

Inventor
Tokyo, JP

Overview

9→
Patents
1982–2021
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.

F24Fprimary
F24FAir-conditioning23%
B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls15%
Y10TTechnical subjects covered by former us classification15%
B23DPlaning8%
B23GThread cutting8%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling8%
F25DRefrigerators8%
G06KGraphical data reading8%
G06VImage or video recognition or understanding8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to MARUYAMA MASAAKI (1)· patent assignee history
1982–1997Based in Kyoto-shi, JP· patent location history
1984–2008Patents assigned to REX IND CO (3)· patent assignee history
1984–2008Based in Kyoto, JP· patent location history
1993Patents assigned to KANETEC KABUSHIKI KAISHA (1)· patent assignee history
1993Based in Nagano, JP· patent location history
2018–2019Patents assigned to MITSUBISHI ELECTRIC CORP (3)· patent assignee history
2018–2021Based in Tokyo, JP· patent location history
2021Patents assigned to TOSHIBA KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI ELECTRIC CORP32018–2019
REX IND CO31984–2008
KANETEC KABUSHIKI KAISHA11993
MARUYAMA MASAAKIself11982
TOSHIBA KK12021
Locations
LocationPatentsSpan
Tokyo, JP42018–2021
Kyoto, JP21984–2008
Kyoto-shi, JP21982–1997
Nagano, JP11993