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Inventor

Yoshihisa Oishi

Inventor
Yokohama, JP

Overview

3→
Patents
1989–2001
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information67%
F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general33%
PatentTitleYear
6,219,020'Liquid crystal display control device'20016,088,014'Liquid crystal display device'20004,818,845'Storage type electric water heater having a closed circulation loop provided with a bubble pump'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to TOSHIBA KK (1)· patent assignee history
1989–2001Based in Yokohama, JP· patent location history
2000–2001Patents assigned to HITACHI LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD22000–2001
TOSHIBA KK11989
Locations
LocationPatentsSpan
Yokohama, JP31989–2001