P

Inventor

OKUYAMA KEIICHI

JP10 patents
⚠️ This page may combine multiple inventors who share the name “OKUYAMA KEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NEC CORP

4 patents
US5825821AOct 20, 1998

Hitless switch device and method of switching between different paths

NEC CORP15 citations71
US5677931AOct 14, 1997

Transmission path switching apparatus

NEC CORP16 citations65
US5651027AJul 22, 1997

Non-instantaneous disconnection switching system

NEC CORP2 citations60
US7856075B2Dec 21, 2010

Clock supply circuit and clock supply method

NEC CORP2 citations58

OKUYAMA KEIICHI

2 patents
US8536385B2Sep 17, 2013

Process for preparing dimethyl ether and process for preparing a mixture of dimethyl ether and methanol

OKUYAMA KEIICHI3 citations57
US9106331B2Aug 11, 2015

Transmission apparatus and processing method thereof

OKUYAMA KEIICHI0 citations46

KAWASAKI HEAVY IND LTD

1 patent
US6663051B2Dec 16, 2003

Thermal protection structure

KAWASAKI HEAVY IND LTD21 citations90

JFE HOLDINGS INC

1 patent
US7015255B1Mar 21, 2006

Medium oil for slurry-bed reaction process and process of producing dimethyl ether

JFE HOLDINGS INC5 citations60

KYUSHU INST TECHNOLOGY

1 patent
US7981500B2Jul 19, 2011

Carbon fiber reinforced prepreg of gas barrier properties, carbon fiber reinforced plastic and methods of producing the same

KYUSHU INST TECHNOLOGY5 citations59

JFE ENG CORP

1 patent
US10228129B2Mar 12, 2019

Waste gasification melting apparatus and waste gasification melting method using the same

JFE ENG CORP0 citations39