P

Inventor

NOGIWA HIDETO

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

HITACHI LTD

3 patents
US6524059B1Feb 25, 2003

Turbo fluid machinery and dry gas seal used for the machinery

HITACHI LTD52 citations93
US6802689B2Oct 12, 2004

Turbo type fluid machine and dry gas seal for use therefor

HITACHI LTD28 citations89
US6398484B1Jun 4, 2002

Centrifugal compressor and shaft seal

HITACHI LTD28 citations88

TSUKAMOTO TAKESHI

1 patent
US8426766B2Apr 23, 2013

Welding method and welding apparatus for an impeller

TSUKAMOTO TAKESHI11 citations80

IWASA MASAAKI

1 patent
US8408873B2Apr 2, 2013

Welding slot sealing structure and welding method

IWASA MASAAKI9 citations78