P
PatentIndex
Search
Landscape
Sign in
Inventor
OHKI KATSUO
JP
6 patents
⚠️ This page may combine multiple inventors who share the name “OHKI KATSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
3 patents
US5689572A
Nov 18, 1997
Method of actively controlling noise, and apparatus thereof
HITACHI LTD
123 citations
97
US5548411A
Aug 20, 1996
Facsimile apparatus
HITACHI LTD
11 citations
71
US5452098A
Sep 19, 1995
Facsimile apparatus
HITACHI LTD
11 citations
71
HITACHI HIGH TECH CORP
3 patents
US11709199B2
Jul 25, 2023
Evaluation apparatus for semiconductor device
HITACHI HIGH TECH CORP
0 citations
60
US11391756B2
Jul 19, 2022
Probe module and probe
HITACHI HIGH TECH CORP
0 citations
60
US11977099B2
May 7, 2024
Method for manufacturing semiconductor device
HITACHI HIGH TECH CORP
0 citations
50