Inventor
KOJIMA KATSUNORI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “KOJIMA KATSUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
5 patentsUS6144005ANov 7, 2000
Vacuum switch and a vacuum switchgear using the same
HITACHI LTD30 citations91
US6529009B2Mar 4, 2003
Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof
HITACHI LTD12 citations73
US6426627B2Jul 30, 2002
Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof
HITACHI LTD10 citations73
US6495786B1Dec 17, 2002
Vacuum exhaust element of vacuum switch
HITACHI LTD7 citations72
US6259051B1Jul 10, 2001
Vacuum switch and a vacuum switchgear using the same
HITACHI LTD9 citations72
CANON MEDICAL SYSTEMS CORP
3 patentsUS12484874B2Dec 2, 2025
X-ray diagnostic apparatus
CANON MEDICAL SYSTEMS CORP0 citations51
US12569211B2Mar 10, 2026
X-ray diagnostic apparatus and image processing method
CANON MEDICAL SYSTEMS CORP0 citations48
US10820870B2Nov 3, 2020
X-ray diagnostic apparatus and X-ray high-voltage generator
CANON MEDICAL SYSTEMS CORP0 citations47