Inventor

Hiroshi Obara

Inventor

Iwaki, JP

Overview

24→

Patents

1976–2009

Patent span

Electricity

Primary field (CPC H)

Patents· 24 as inventor

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

Y10Sprimary

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general10%

H10NElectric solid-state devices not otherwise provided for10%

B23KSoldering or unsoldering6%

G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light6%

Y10TTechnical subjects covered by former us classification6%

G11BInformation storage based on relative movement between record carrier and transducer4%

H03KPulse technique4%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers4%

LOC184%

PatentTitleYear

7,552,998'Method and apparatus for image forming capable of increasing maintenance efficiency'2009 D0510090'Bar code reader'2005 D0478618'Printer for a computer'2003 D0447766'Portable printer'2001 6,276,366'Rod-shaped test-piece testing apparatus'2001 6,057,936'Image forming apparatus having internal space for sheet ejection and retention'2000 5,873,982'Method and apparatus of discriminating coal species'1999 5,756,130'Stamper for producing recording medium'1998 5,216,566'Floppy disk unit with liner of fibers containing inorganic oxide powder'1993 5,091,623'Welding gun provided with a backup cylinder'1992 D0323521'Camera'1992 D0313809'Camera'1991 4,673,793'Connecting metal fittings for resistance welder'1987 4,577,090'Primary cable apparatus for robot welding gun'1986 4,543,293'Polarized, shaped material of copolymer of vinylidene fluoride'1985 4,467,202'Photoelectric detector'1984 4,412,147'Ultrasonic holography imaging device having a macromolecular piezoelectric element transducer'1983 4,406,967'Ultrasonic probe'1983 4,258,260'Pyroelectric infrared detector'1981 4,258,259'Infrared detector'1981 4,071,785'Laminated piezoelectric matrix switch'1978 3,984,903'Method of spanning across a frame a high-molecular-weight piezoelectric element'1976 3,969,927'Vibration measuring and the apparatus therefor'1976 3,935,485'Piezoelectric key board switch'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1985Patents assigned to KUREHA CHEMICAL IND CO LTD (10)· patent assignee history

1976–1985Based in Iwaki, JP· patent location history

1986–1992Patents assigned to OBARA CORP (3)· patent assignee history

1986–2001Based in Tokyo, JP· patent location history

1991–1992Patents assigned to RICOH CO LTD (2)· patent assignee history

1998Based in Toride, JP· patent location history

1999–2001Patents assigned to JAPAN TOBACCO INC (2)· patent assignee history

1999–2005Based in Kanagawa, JP· patent location history

2000–2009Patents assigned to RICOH KK (5)· patent assignee history

2000–2009Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KUREHA CHEMICAL IND CO LTD	10	1976–1985
RICOH KK	5	2000–2009
OBARA CORP	3	1986–1992
JAPAN TOBACCO INC	2	1999–2001
RICOH CO LTD	2	1991–1992

Locations

Location	Patents	Span
Iwaki, JP	9	1976–1985
Tokyo, JP	6	1986–2001
Kanagawa, JP	4	1999–2005
Yokohama, JP	2	2000–2009
Toride, JP	1	1998