Inventor
FUKAI TOSHIMASA
JP20 patents
⚠️ This page may combine multiple inventors who share the name “FUKAI TOSHIMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MEIDENSHA ELECTRIC MFG CO LTD
14 patentsUS7042699B2May 9, 2006
Vacuum variable capacitor
MEIDENSHA ELECTRIC MFG CO LTD11 citations84
US7041930B2May 9, 2006
Bellows for use in vacuum capacitor
MEIDENSHA ELECTRIC MFG CO LTD7 citations74
US6975499B2Dec 13, 2005
Vacuum variable capacitor with energization and heat shielding bellows
MEIDENSHA ELECTRIC MFG CO LTD7 citations74
US5352404AOct 4, 1994
Process for forming contact material including the step of preparing chromium with an oxygen content substantially reduced to less than 0.1 wt. %
MEIDENSHA ELECTRIC MFG CO LTD12 citations74
US10068741B2Sep 4, 2018
Field emission device and reforming treatment method
MEIDENSHA ELECTRIC MFG CO LTD5 citations71
US6307729B1Oct 23, 2001
Vacuum capacitor
MEIDENSHA ELECTRIC MFG CO LTD12 citations71
US5480472AJan 2, 1996
Method for forming an electrical contact material
MEIDENSHA ELECTRIC MFG CO LTD16 citations69
US4707577ANov 17, 1987
Vacuum interrupter
MEIDENSHA ELECTRIC MFG CO LTD14 citations68
US4547638AOct 15, 1985
Vacuum interrupter
MEIDENSHA ELECTRIC MFG CO LTD4 citations60
US6462930B1Oct 8, 2002
Vacuum variable capacitor device
MEIDENSHA ELECTRIC MFG CO LTD6 citations57
US11342127B2May 24, 2022
Transformer for vacuum capacitor type instrument
MEIDENSHA ELECTRIC MFG CO LTD0 citations55
US5489412AFeb 6, 1996
Electrode material
MEIDENSHA ELECTRIC MFG CO LTD0 citations52
US10910184B2Feb 2, 2021
Sealed relay
MEIDENSHA ELECTRIC MFG CO LTD0 citations44
US9589751B2Mar 7, 2017
Sealed relay
MEIDENSHA ELECTRIC MFG CO LTD0 citations34