P

Inventor

ABE HAJIME

JP30 patents
⚠️ This page may combine multiple inventors who share the name “ABE HAJIME”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

13 patents
US7046630B2May 16, 2006

Packet switching network, packet switching equipment and network management equipment

HITACHI LTD333 citations99
US6512745B1Jan 28, 2003

Packet switching network, packet switching equipment, and network management equipment

HITACHI LTD414 citations99
US6275494B1Aug 14, 2001

Packet switching system, packet switching network and packet switching method

HITACHI LTD63 citations96
US5448661ASep 5, 1995

Optical parallel transmission device

HITACHI LTD59 citations96
US7463633B2Dec 9, 2008

Packet switching system, packet switching network and packet switching method

HITACHI LTD32 citations92
US5715339AFeb 3, 1998

Optical parallel transmission device

HITACHI LTD25 citations92
US5675599AOct 7, 1997

Driving circuit of laser diode and optical transmission device

HITACHI LTD19 citations92
US6882653B1Apr 19, 2005

Gateway system having controller and signal processor for interconnecting IP network and telephone network and method for controlling alternative routing at the time of fault of gateway system

HITACHI LTD47 citations87
US5568576AOct 22, 1996

Optical parallel transmission device

HITACHI LTD18 citations82
US5263109ANov 16, 1993

Optical transmission paths and methods of measuring their optical transmission times

HITACHI LTD9 citations74
US6002668ADec 14, 1999

Cell output control apparatus and method

HITACHI LTD14 citations73
US6330227B1Dec 11, 2001

Cell output control apparatus and method

HITACHI LTD2 citations62
US5870418AFeb 9, 1999

Driving circuit of laser diode and optical transmission device

HITACHI LTD0 citations52

HITACHI CABLE

7 patents

HONDA MOTOR CO LTD

3 patents

MIURA KOGYO KK

2 patents

(unassigned)

1 patent

TOSHIBA CERAMICS CO

1 patent

TOSHIBA MACHINE CO LTD

1 patent

MITSUBISHI ELECTRIC CORP

1 patent

HIRAO MASAAKI

1 patent