Inventor

Toyoji Tabuchi

Inventor

Kanagawa, JP

Overview

12→

Patents

1977–1995

Patent span

Electricity

Primary field (CPC H)

Patents· 12 as inventor

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

H03Hprimary

H03HImpedance networks, e.g. resonant circuits61%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1011%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%

G09GArrangements or circuits for control of indicating devices using static means to present variable information6%

H03FAmplifiers6%

H05KPrinted circuits6%

H10NElectric solid-state devices not otherwise provided for6%

PatentTitleYear

5,438,305'High frequency module including a flexible substrate'1995 5,422,615'High frequency circuit device'1995 5,235,234'Surface acoustic wave device'1993 5,202,652'Surface acoustic wave filter device formed on a plurality of piezoelectric substrates'1993 5,115,216'Surface acoustic wave filter including saw resonators with transmission spaces therein'1992 5,087,901'Surface acoustic wave band-pass filter with different phase weighted transducers'1992 5,065,065'Surface acoustic wave device'1991 5,010,269'SAW resonator having a broad bandwidth'1991 4,906,885'Electrode material for surface acoustic wave devices and surface acoustic wave device using the same'1990 4,507,581'Electrode structure for saw device'1985 4,255,726'Surface acoustic wave filter'1981 4,021,798'Liquid crystal display panel and method for driving the same'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1995Patents assigned to HITACHI LTD (12)· patent assignee history

1977–1985Based in Hachioji, JP· patent location history

1990–1995Patents assigned to HITACHI ELECTRONICS (3)· patent assignee history

1990–1991Based in Kodaira, JP· patent location history

1991Patents assigned to HITACHI COMMUNICATION SYSTEM (1)· patent assignee history

1991–1993Based in Tsukui, JP· patent location history

1992–1995Based in Kanagawa, JP· patent location history

1995Patents assigned to HITACHI VIDEO & INF SYST (2)· patent assignee history

1995Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	12	1977–1995
HITACHI ELECTRONICS	3	1990–1995
HITACHI VIDEO & INF SYST	2	1995
HITACHI COMMUNICATION SYSTEM	1	1991

Locations

Location	Patents	Span
Kanagawa, JP	3	1992–1995
Tsukui, JP	3	1991–1993
Hachioji, JP	3	1977–1985
Kodaira, JP	2	1990–1991
Yokohama, JP	1	1995