Inventor

Makoto Ohnishi

Inventor

Tokyo, JP

Overview

22→

Patents

1980–2006

Patent span

Electricity

Primary field (CPC H)

Patents· 22 as inventor

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

H04Lprimary

H04LTransmission of digital information, e.g. telegraphic communication23%

B01DSeparation10%

H03HImpedance networks, e.g. resonant circuits10%

H03DDemodulation or transference of modulation from one carrier to another8%

H04BTransmission8%

C08JWorking-up5%

G06FElectric digital data processing5%

H03MCoding5%

Y10TTechnical subjects covered by former us classification5%

A61LMethods or apparatus for sterilising materials or objects in general3%

PatentTitleYear

7,111,106'Bus communication system by unrestrained connection and a communication control method therefor'2006 6,912,207'Network topology design apparatus and network topology design method, and recording medium recorded with a network topology design program'2005 5,926,065'Digital modulator having a digital filter including low-speed circuit components'1999 5,889,766'Transmission/reception method based on frequency division multiple access having changeable communication channel bandwidths and communication apparatus employing the method'1999 5,682,431'FM stereo broadcasting apparatus and method'1997 5,566,191'Soft decision maximum likelihood decoding method with adaptive metric'1996 5,473,280'Modulation/demodulation method and system for realizing quadrature modulation/demodulation technique used in digital mobile radio system with complex signal processing'1995 5,279,856'Hydrophilic porous membrane, method of manufacturing the same and liquid filter using same'1994 5,244,578'Blood plasma-separating membrane and blood plasma separator using the membrane'1993 5,216,505'Scanning line interpolation circuit'1993 5,203,997'Hydrophilic porous membrane, method of manufacturing the same and liquid filter using the same'1993 5,180,492'Hydrophilic porous material sterilizable with gamma-ray'1993 5,028,332'Hydrophilic material and method of manufacturing'1991 4,926,499'Carrier phase controller for a receiver of phase modulated signals'1990 4,823,346'Maximum likelihood decoder'1989 4,737,728'Digitally processed demodulator for quadrature modulated signals'1988 4,680,556'Digital modulation apparatus'1987 4,337,518'Recursive-type digital filter with reduced round-off noise'1982 4,305,133'Recursive type digital filter'1981 4,285,047'Digital adder circuit with a plurality of 1-bit adders and improved carry means'1981 4,261,051'Time-division-multiplexed exchanger'1981 4,223,389'Recursive digital filter having means to prevent overflow oscillation'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1996Patents assigned to HITACHI LTD (12)· patent assignee history

1980–2006Based in Tokyo, JP· patent location history

1989Patents assigned to HITACHI DENSHI KABUSHIKI (1)· patent assignee history

1991–1994Patents assigned to TERUMO CORP (5)· patent assignee history

1991–1994Based in Fuji, JP· patent location history

1993Based in Ashigarakami-gun, JP· patent location history

1995–1999Patents assigned to HITACHI ELECTRONICS (5)· patent assignee history

2005Patents assigned to FUJITSU LTD (1)· patent assignee history

2005Based in Chiyoda-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	12	1980–1996
HITACHI ELECTRONICS	5	1995–1999
TERUMO CORP	5	1991–1994
FUJITSU LTD	1	2005
HITACHI DENSHI KABUSHIKI	1	1989

Locations

Location	Patents	Span
Tokyo, JP	16	1980–2006
Fuji, JP	3	1991–1994
Ashigarakami-gun, JP	2	1993
Chiyoda-ku, JP	1	2005