P

Inventor

HISADA MASAYA

JP5 patents
⚠️ This page may combine multiple inventors who share the name “HISADA MASAYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUBISHI MATERIALS CORP

3 patents
US9551190B2Jan 24, 2017

Excavation tool

MITSUBISHI MATERIALS CORP6 citations70
US7942216B2May 17, 2011

Drill rod, drill bit, and drilling tool

MITSUBISHI MATERIALS CORP3 citations61
US9428964B2Aug 30, 2016

Excavating tool

MITSUBISHI MATERIALS CORP2 citations60

HISADA MASAYA

1 patent
US8430977B2Apr 30, 2013

Hollow drilling steel rod and method of manufacturing the same

HISADA MASAYA6 citations61

HIWASA YONEO

1 patent
US8550191B2Oct 8, 2013

Digging tool, digging bit, and device

HIWASA YONEO3 citations54