P

Inventor

TAKATORI MASAHIRO

JP68 patents
⚠️ This page may combine multiple inventors who share the name “TAKATORI MASAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

39 patents
US5963555AOct 5, 1999

Router apparatus using ATM switch

HITACHI LTD137 citations99
US5838677ANov 17, 1998

Switching system having means for congestion control by monitoring packets in a shared buffer and by suppressing the reading of packets from input buffers

HITACHI LTD170 citations98
US5042027AAug 20, 1991

Communication network system and method of controlling a communication network

HITACHI LTD369 citations98
US5500756AMar 19, 1996

Optical fiber transmission system and supervision method of the same

HITACHI LTD183 citations97
US6046999AApr 4, 2000

Router apparatus using ATM switch

HITACHI LTD65 citations96
US5721727AFeb 24, 1998

Control method and apparatus for path switching in ring network

HITACHI LTD79 citations96
US5555477ASep 10, 1996

Optical transmission system constructing method and system

HITACHI LTD48 citations96
US5550805AAug 27, 1996

Failure restoration method in a mesh network

HITACHI LTD79 citations96
US5815489ASep 29, 1998

Self-healing ring switch and method of controlling the same

HITACHI LTD41 citations93
US5600631AFeb 4, 1997

Self-healing ring switch and method of controlling the same

HITACHI LTD31 citations93
US5577037ANov 19, 1996

Method of processing inclusively STM signals and ATM signals and switching system employing the same

HITACHI LTD42 citations93
US5475676ADec 12, 1995

Switch for self-healing ring

HITACHI LTD25 citations93
US5315581AMay 24, 1994

Hit-less protection switching method and apparatus for ATM transmission lines

HITACHI LTD24 citations93
US7024616B2Apr 4, 2006

Method for encoding/decoding error correcting code, transmitting apparatus and network

HITACHI LTD43 citations92
US6424662B1Jul 23, 2002

Router apparatus using ATM switch

HITACHI LTD16 citations92
US6362905B1Mar 26, 2002

Optical crossconnect apparatus and optical transmission system

HITACHI LTD36 citations92
US6266169B1Jul 24, 2001

Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal

HITACHI LTD21 citations92
US6005699ADec 21, 1999

Optical wavelength multiplexing system

HITACHI LTD21 citations92
US5812289ASep 22, 1998

Optical repeater and optical transmitter

HITACHI LTD23 citations92
US5473598ADec 5, 1995

Routing method and apparatus for switching between routing and conversion tables based on selection information included in cells to be routed

HITACHI LTD39 citations92
US5189668AFeb 23, 1993

Atm switch and atm multiplexer

HITACHI LTD38 citations92
US5128939AJul 7, 1992

Method of phase-converting frame and apparatus using same

HITACHI LTD22 citations92
US6034954AMar 7, 2000

Multiplexing apparatus for transit of signals between service provided by low-speed transmission path and ATM service provided by high-speed transmission path

HITACHI LTD24 citations89
US7512867B2Mar 31, 2009

Method for encoding/decoding error correcting code, transmitting apparatus and network

HITACHI LTD10 citations84
US6975811B1Dec 13, 2005

Optical one-to-one protection switching apparatus

HITACHI LTD15 citations83
US5861972AJan 19, 1999

Optical multiplex transmission equipment and method

HITACHI LTD12 citations82
US5197063AMar 23, 1993

Circuit switching method and apparatus for time division network with various transmission speeds

HITACHI LTD20 citations82
US6980553B2Dec 27, 2005

Router apparatus using ATM switch

HITACHI LTD11 citations74
US6728489B2Apr 27, 2004

Optical transmission system constructing method and system

HITACHI LTD6 citations74
US6385171B1May 7, 2002

Router apparatus using ATM switch

HITACHI LTD10 citations74
US6018405AJan 25, 2000

Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal

HITACHI LTD7 citations74
US5875046AFeb 23, 1999

Optical repeater and optical transmitter

HITACHI LTD9 citations74
US5739932AApr 14, 1998

Optical transmission system constructing method and system

HITACHI LTD8 citations74
US5331639AJul 19, 1994

Method and apparatus for frame phase conversion of signal having frame structure

HITACHI LTD8 citations74
US6813445B2Nov 2, 2004

Optical crossconnect apparatus and optical transmission system

HITACHI LTD6 citations73
US5671074ASep 23, 1997

Optical multiplex transmission equipment and method

HITACHI LTD4 citations72
US7292785B2Nov 6, 2007

Optical transmission system constructing method and system

HITACHI LTD2 citations63
US7167652B2Jan 23, 2007

Optical transmission system constructing method and system

HITACHI LTD1 citations63
US5271006ADec 14, 1993

Frame aligner and method and system for control thereof

HITACHI LTD4 citations63

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

4 patents

PANASONIC CORP

3 patents

TAKATORI MASAHIRO

2 patents

YANO MASASHI

2 patents

Showing the top 50 of 68 patents by PatentIndex Score.