Inventor
MARUYAMA MASARU
JP8 patents
⚠️ This page may combine multiple inventors who share the name “MARUYAMA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HAKKO ELECTRIC MACHINE WORKS C
5 patentsUS5026350AJun 25, 1991
Set of double needles for injecting liquid medicine
HAKKO ELECTRIC MACHINE WORKS C90 citations94
US4846799AJul 11, 1989
Set of double needles for injecting liquid medicine
HAKKO ELECTRIC MACHINE WORKS C123 citations94
US5505211AApr 9, 1996
Biopsy needles
HAKKO ELECTRIC MACHINE WORKS C43 citations90
US5209239AMay 11, 1993
Apparatus for cystographic inspection
HAKKO ELECTRIC MACHINE WORKS C6 citations62
US6471711B2Oct 29, 2002
Device for guiding puncture needle
HAKKO ELECTRIC MACHINE WORKS C6 citations56