LexDanaLexDanabeta
Inventor

Kazuyuki Tajima

Inventor
Kawasaki, JP

Overview

53→
Patents
1993–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 53 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Jprimary
H04JMultiplex communication24%
H04LTransmission of digital information, e.g. telegraphic communication21%
H04BTransmission14%
H04QSelecting14%
H04NPictorial communication, e.g. television5%
G02BOptical elements, systems or apparatus4%
G06FElectric digital data processing3%
G11BInformation storage based on relative movement between record carrier and transducer2%
H01LSemiconductor devices2%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation2%
PatentTitleYear
10,863,120Imaging device, imaging module, and imaging method202010,812,734Imaging device202010,778,904Imaging device202010,659,184Optical transmission device, optical transmission method and optical transmission system202010,649,118Imaging device202010,488,561Imaging device201910,461,108Imaging device201910,341,041Method and device for assisting wavelength reallocation in wavelength division multiplexing optical network201910,027,407Device and method for designing optical network20189,940,964Optical information recording/reproducing device, optical information reproducing device, and optical information reproducing method20189,825,728'Demand accommodation changing order determination method'20179,602,194'Transmission device, network designing device, activation method, and network designing method'20179,602,195'Network design apparatus, network design method, and storage medium storing network design program'20179,495,510'Recording medium, accommodation design device, and accommodation design method'20169,281,914'Apparatus and method for designing a network transmitting wavelength multiplexed optical signals'20169,270,538'Network design apparatus and network design method'20169,160,474'Method and apparatus for designing network'20159,082,417'Optical information recording apparatus and optical information recording method'20159,077,480'Demand accommodation designing system and method'20159,071,384'Network design apparatus, network design method, and storage medium storing network design program'20158,948,597'Network design apparatus'20158,805,199'Dispersion compensation design method and dispersion compensation design system'20148,781,329'Dispersion compensation design method and dispersion compensation design system'20148,737,839'Network design apparatus, method, and computer product'20148,706,882'Apparatus and method for allocating devices to a communication route'20148,705,959'Optical network designing device, method, and program'20148,676,947'Resource reservation apparatus and method'20148,565,596'Apparatus for supporting designing of optical network, process for designing optical network, and computer-readable, non-transitory medium storing network design program'20138,543,957'Optical network design apparatus and method'20138,406,626'Optical-network design apparatus'20138,380,077'Chromatic dispersion compensation design system and chromatic dispersion compensation design method'20138,345,538'Apparatus and method for finding a pair of disjoint paths in a communication network'20138,315,161'Network design device and network design method'20128,275,259'Method for determining value of chromatic dispersion compensation'20128,270,829'Apparatus and method for designing network'20128,190,031'Optical network design apparatus and dispersion compensation design method'20128,121,481'Chromatic dispersion compensation designing method in optical network and a system thereof'20128,078,701'Network design and determination of the arrangement of optical transmission devices in respective network stations'20118,068,732'Network design apparatus and network design method'20118,027,262'Method and apparatus for keeping track of virtual LAN topology in network of nodes'20117,853,226'Peak-hold circuit and signal strength indicator using the peak-hold circuit'20107,830,789'Method for accommodating signal paths to ring network'20107,761,006'Method for designing optical network, and computer readable medium'20107,751,345'Optical network design method and storage medium for storing design program'20107,679,467'Voltage controlled oscillator'20107,660,527'Optical network design method'20106,741,766'Optical switch device'20046,662,353'System and program for estimating person-hours required to prepare a pattern film of a circuit to be printed on a board'20036,658,009'Band allocation method and transmission system for transmitting variable-length packets'20035,515,386'Transmission circuit for transmitting fixed-length data'19965,408,476'One bit error correction method having actual data reproduction function'19955,265,088'Cross-connection apparatus for B-ISDN'19935,257,311'System for monitoring ATM cross-connecting apparatus by inside-apparatus monitoring cell'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2020Patents assigned to FUJITSU LTD (42)· patent assignee history
1993–2015Based in Kawasaki, JP· patent location history
2003–2020Based in Tokyo, JP· patent location history
2003Based in Kanagawa, JP· patent location history
2011–2015Patents assigned to TAJIMA KAZUYUKI (19)· patent assignee history
2011–2015Patents assigned to HASHIGUCHI TOMOHIRO (18)· patent assignee history
2011–2015Patents assigned to TAKITA YUTAKA (17)· patent assignee history
2011–2014Patents assigned to KATAGIRI TORU (11)· patent assignee history
2015–2020Based in Yokosuka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU LTD421993–2020
TAJIMA KAZUYUKIself192011–2015
HASHIGUCHI TOMOHIRO182011–2015
TAKITA YUTAKA172011–2015
KATAGIRI TORU112011–2014
Locations
LocationPatentsSpan
Kawasaki, JP291993–2015
Yokosuka, JP122015–2020
Tokyo, JP112003–2020
Kanagawa, JP12003