P

Inventor

HIROKI SEIJI

JP12 patents
⚠️ This page may combine multiple inventors who share the name “HIROKI SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JAPAN ATOMIC ENERGY RES INST

5 patents
US5373157ADec 13, 1994

Quadrupole electrode and process for producing the same

JAPAN ATOMIC ENERGY RES INST62 citations96
US6530980B2Mar 11, 2003

Gas separation apparatus

JAPAN ATOMIC ENERGY RES INST9 citations72
US5653854AAug 5, 1997

Method and apparatus for separating isotopes

JAPAN ATOMIC ENERGY RES INST6 citations71
US5177359AJan 5, 1993

Quadrupole mass spectrometer having plural stable regions

JAPAN ATOMIC ENERGY RES INST8 citations67
US5805972ASep 8, 1998

Method and apparatus for separating isotopes

JAPAN ATOMIC ENERGY RES INST2 citations60

ANEST IWATA CORP

2 patents
US6149405ANov 21, 2000

Double wrap dry scroll vacuum pump having a compressed gas cooling passage disposed in the scroll shaft

ANEST IWATA CORP60 citations95
US7559966B2Jul 14, 2009

Exhaust gas filter

ANEST IWATA CORP1 citations51

ORGANO CORP

2 patents
US7527676B2May 5, 2009

Unit for separating gas

ORGANO CORP7 citations72
US6551387B2Apr 22, 2003

Gas separation apparatus

ORGANO CORP9 citations72

JAPAN ATOMIC ENERGY AGENCY

1 patent
US7892322B2Feb 22, 2011

Apparatus and method for separating gas

JAPAN ATOMIC ENERGY AGENCY23 citations92

OSAKA VACUUM LTD

1 patent
US5632597AMay 27, 1997

Thread groove type vacuum pump

OSAKA VACUUM LTD16 citations73

SEIKO SEIKI KK

1 patent
US5280206AJan 18, 1994

Armature stator

SEIKO SEIKI KK10 citations73