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Inventor

Mitoshi Umeki

Inventor
Saitama, JP

Overview

17→
Patents
1999–2014
Patent span
Electricity
Primary field (CPC H)

Patents· 17 as inventor

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

H03Hprimary
H03HImpedance networks, e.g. resonant circuits60%
Y10TTechnical subjects covered by former us classification24%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner4%
H10BElectronic memory devices4%
H10NElectric solid-state devices not otherwise provided for4%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%
PatentTitleYear
8,729,775'Piezoelectric vibrating devices and methods for manufacturing same'20148,604,675'Piezoelectric resonator and method of manufacturing piezoelectric resonator'20138,415,858'Piezoelectric vibrating pieces and devices, and methods for manufacturing same'20138,405,282'Piezoelectric devices exhibiting enhanced resistance to physical impacts and moisture incursion'20138,382,995'Piezoelectric devices and methods for manufacturing same'20138,303,755'Manufacturing methods of piezoelectric devices'20128,227,958'Piezoelectric devices and methods for manufacturing same'20128,154,178'Piezoelectric frame surrounding a piezoelectric vibrating piece and package with exhaust channel'20128,120,233'Piezoelectric devices and methods for manufacturing same'20128,018,126'Piezoelectric devices exhibiting reduced CI degradation'20117,388,320'Quartz crystal unit and holding structure for same'20087,339,309'Surface mount crystal oscillator'20087,199,510'Quartz crystal unit'20077,129,624'Crystal unit'20067,116,039'Crystal unit and holding structure of crystal unit'20067,012,355'Crystal unit'20065,879,972'SRAM device and method of manufacturing the same'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999Based in Sagamihara, JP· patent location history
2006–2014Patents assigned to NIHON DEMPA KOGYO CO (16)· patent assignee history
2006–2014Based in Saitama, JP· patent location history
2012–2014Patents assigned to UMEKI MITOSHI (9)· patent assignee history
2012–2014Patents assigned to ICHIKAWA RYOICHI (5)· patent assignee history
2012–2014Patents assigned to AMANO YOSHIAKI (2)· patent assignee history
2012Patents assigned to INOUE TAKAHIRO (2)· patent assignee history
2013Based in Sayama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIHON DEMPA KOGYO CO162006–2014
UMEKI MITOSHIself92012–2014
ICHIKAWA RYOICHI52012–2014
AMANO YOSHIAKI22012–2014
INOUE TAKAHIRO22012
Locations
LocationPatentsSpan
Saitama, JP152006–2014
Sayama, JP12013
Sagamihara, JP11999