Inventor

Yumiko Ohashi

Inventor

Hashima, JP

Overview

18→

Patents

1991–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 18 as inventor

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

B41Jprimary

B41JTypewriters31%

G11BInformation storage based on relative movement between record carrier and transducer19%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%

C23CCoating metallic material8%

Y10TTechnical subjects covered by former us classification8%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for4%

C25DProcesses for the electrolytic or electrophoretic production of coatings4%

G06KGraphical data reading4%

G06VImage or video recognition or understanding4%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use4%

PatentTitleYear

10,974,697Fingerprint authentication device2021 7,845,070'Manufacturing method of ink jet head'2010 7,086,154'Process of manufacturing nozzle plate for ink-jet print head'2006 5,984,447'L-shaped inkjet print head in which driving voltage is directly applied to driving electrodes'1999 5,840,374'Method of forming a SiO.sub.2 passivation film on a plastic substrate'1998 5,825,386'Piezoelectric ink-jet device and process for manufacturing the same'1998 5,677,717'Ink ejecting device having a multi-layer protective film for electrodes'1997 5,594,482'Ink jet printer head with ink channel protective film'1997 5,554,418'Method of forming passivation film'1996 5,554,451'Optical data recording medium'1996 5,475,407'Ink ejecting printer head'1995 5,455,818'Optical recording medium'1995 5,277,783'Manufacturing method for orifice plate'1994 5,199,024'Optical data storage medium having embedded tracking information'1993 5,095,478'Optical data storage medium having interference and flattening layers each having specific thickness for improved information reading and tracking reliability'1992 5,089,358'Optical recording medium'1992 D0318482'Electronic music keyboard'1991 D0317931'Electronic musical keyboard'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to CASIO COMPUTER CO LTD (2)· patent assignee history

1991Based in Tachikawa, JP· patent location history

1992–2010Patents assigned to BROTHER IND LTD (15)· patent assignee history

1992–2010Based in Hashima, JP· patent location history

1992Based in Hajima, JP· patent location history

1996–1998Patents assigned to ULVAC CORP (2)· patent assignee history

1996–1998Based in Nagoya, JP· patent location history

2021Patents assigned to TOKAI RIKA CO LTD (1)· patent assignee history

2021Patents assigned to TOYOTA MOTOR CO LTD (1)· patent assignee history

2021Based in Niwa-gun, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BROTHER IND LTD	15	1992–2010
CASIO COMPUTER CO LTD	2	1991
ULVAC CORP	2	1996–1998
TOKAI RIKA CO LTD	1	2021
TOYOTA MOTOR CO LTD	1	2021

Locations

Location	Patents	Span
Hashima, JP	12	1992–2010
Nagoya, JP	2	1996–1998
Tachikawa, JP	2	1991
Niwa-gun, JP	1	2021
Hajima, JP	1	1992