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Inventor

Susumu Sakamoto

Inventor
Tokyo, JP

Overview

2→
Patents
1995–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F04Cprimary
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids50%
H04NPictorial communication, e.g. television50%
PatentTitleYear
11,118,583Scroll fluid machine with concave and convex portions in the spiral laps20215,412,437'Projection type display device'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995Patents assigned to HITACHI LTD (1)· patent assignee history
1995Based in Yokohama, JP· patent location history
2021Patents assigned to HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (1)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD12021
HITACHI LTD11995
Locations
LocationPatentsSpan
Tokyo, JP12021
Yokohama, JP11995