Inventor

Masaru Kugo

Inventor

Ibaraki, JP

Overview

10→

Patents

1982–1990

Patent span

Physics

Primary field (CPC G)

Patents· 10 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein44%

G09FDisplaying11%

G09GArrangements or circuits for control of indicating devices using static means to present variable information11%

B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general6%

B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for6%

G01DMeasuring not specially adapted for a specific variable6%

G01RMeasuring electric variables6%

G07CTime or attendance registers6%

H01JElectric discharge tubes or discharge lamps6%

PatentTitleYear

4,957,350'Liquid crystal display device'1990 4,922,239'Multi-shade color liquid crystal display apparatus'1990 4,736,198'Multi-color liquid crystal display system'1988 4,708,440'Liquid crystal display device'1987 4,697,886'Color liquid crystal display device with interdigited segment electrodes'1987 4,673,252'Liquid crystal color display apparatus having fixed and variable color regions'1987 4,664,481'Liquid crystal display device having fluorescent tube illuminator'1987 4,653,863'Liquid crystal display device having louvered filter and strip electrodes'1987 4,349,810'Signal lamp apparatus with a lamp burnout detecting circuit'1982 4,348,726'Method of controlling automobile equipment and control apparatus'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1990Patents assigned to HITACHI LTD (10)· patent assignee history

1982–1990Based in Ibaraki, JP· patent location history

1982Based in Ogawamura, JP· patent location history

1987–1990Patents assigned to HITACHI AUTOMOTIVE ENG (6)· patent assignee history

1987–1990Based in Ogawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	10	1982–1990
HITACHI AUTOMOTIVE ENG	6	1987–1990

Locations

Location	Patents	Span
Ibaraki, JP	6	1982–1990
Ogawa, JP	3	1987–1990
Ogawamura, JP	1	1982