Inventor
TOBITA TOMOYUKI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “TOBITA TOMOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
17 patentsUS5469749ANov 28, 1995
Multiple-function fluid measuring and transmitting apparatus
HITACHI LTD214 citations99
US6016706AJan 25, 2000
Process state detector, semiconductor sensor and display device for displaying a process state used therefor
HITACHI LTD67 citations96
US5259248ANov 9, 1993
Integrated multisensor and static and differential pressure transmitter and plant system using the integrated multisensor
HITACHI LTD84 citations96
US5554809ASep 10, 1996
Process detection apparatus
HITACHI LTD108 citations95
US5677493AOct 14, 1997
Composite condition detection apparatus for detecting static pressure, differential pressure and temperature of a process
HITACHI LTD22 citations92
US5528940AJun 25, 1996
Process condition detecting apparatus and semiconductor sensor condition detecting circuit
HITACHI LTD21 citations92
US5412992AMay 9, 1995
Differential pressure sensor capable of removing influence of static pressure and a method of assembling the same
HITACHI LTD37 citations92
US5257546ANov 2, 1993
Pressure measuring sensor
HITACHI LTD26 citations92
US4972716ANov 27, 1990
Semiconductor pressure converting device
HITACHI LTD32 citations92
US5635649AJun 3, 1997
Multi-function differential pressure sensor with thin supporting base
HITACHI LTD34 citations91
US5531120AJul 2, 1996
Compact differential pressure transmitter having first and second damper chambers
HITACHI LTD30 citations89
US6580067B1Jun 17, 2003
Sample analyzing monitor and combustion control system using the same
HITACHI LTD17 citations84
US5477738ADec 26, 1995
Multi-function differential pressure sensor with thin stationary base
HITACHI LTD16 citations81
US5672826ASep 30, 1997
Semiconductor pressure sensor
HITACHI LTD6 citations74
US4995266AFeb 26, 1991
Differential pressure transmitter
HITACHI LTD16 citations74
US4546653AOct 15, 1985
Semiconductor differential pressure transducer
HITACHI LTD12 citations74
US5621175AApr 15, 1997
Differential pressure transmitter having symmetrical construction
HITACHI LTD4 citations62
HITACHI HIGH TECH CORP
3 patentsUS7027935B2Apr 11, 2006
Sample dispensing apparatus and automatic analyzer using the same
HITACHI HIGH TECH CORP25 citations92
US7053367B2May 30, 2006
Mass spectrometer
HITACHI HIGH TECH CORP15 citations83
US7422672B2Sep 9, 2008
Capillary array apparatus, method of manufacturing the same, and electrophoresis analysis method
HITACHI HIGH TECH CORP0 citations47
KK RIKEN
3 patentsUS9834831B2Dec 5, 2017
High rigid spheroidal graphite cast iron
KK RIKEN2 citations68
US11946109B2Apr 2, 2024
Spheroidal graphite cast iron and method of producing spheroidal graphite cast iron, and vehicle undercarriage parts
KK RIKEN0 citations62
US10745784B2Aug 18, 2020
High rigid spheroidal graphite cast iron
KK RIKEN0 citations48