Inventor
TAKAHASHI HAYAO
JP4 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI HAYAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NHK SPRING CO LTD
3 patentsUS4457622AJul 3, 1984
Screw inspection device
NHK SPRING CO LTD38 citations91
US5295299AMar 22, 1994
Method for forming a mounting hole in a method for forming a metallic printed circuit board
NHK SPRING CO LTD16 citations78
US5237132AAug 17, 1993
Metallic printed circuit board with countersunk mounting hole
NHK SPRING CO LTD5 citations70