Inventor

Masatoshi Saruwatari

Inventor

Yokosuka, JP

Overview

13→

Patents

1992–2001

Patent span

Electricity

Primary field (CPC H)

Patents· 13 as inventor

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

H01Sprimary

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light22%

H04BTransmission22%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%

H04JMultiplex communication17%

H04LTransmission of digital information, e.g. telegraphic communication9%

G01MTesting static or dynamic balance of machines or structures4%

H04QSelecting4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

PatentTitleYear

6,204,944'All-optical time-division demultiplexing circuit and all-optical TDM-WDM conversion circuit'2001 6,023,360'Multiple-channel all-optical TDM-WDM converter and multiple-channel all-optical TDM demultiplexer'2000 5,999,548'White optical pulse source and applications'1999 5,923,683'Coherent white light source and optical devices therewith'1999 5,724,126'Method for measuring distribution of zero dispersion wavelengths in an optical fiber and apparatus therefor'1998 5,706,113'Phase lock loop circuit using optical correlation detection'1998 5,646,774'Mode-locked laser stabilizing method and apparatus'1997 5,604,618'Optical parametric circuit and optical circuit using the same'1997 5,590,143'Multiple-frequency-modulation type mode-locked laser device'1996 5,574,588'Phase lock loop circuit using optical correlation detection'1996 5,357,359'All-optical polarization independent optical time division multiplexer and demultiplexer with birefringence compensation'1994 5,267,256'Wavelength division multiplex type mode - lock laser device'1993 5,083,874'Optical repeater and optical network using the same'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2001Patents assigned to NIPPON TELEGRAPH & TELEPHONE (13)· patent assignee history

1992–2000Based in Yokosuka, JP· patent location history

1993–1994Based in Kanagawa, JP· patent location history

1999–2001Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON TELEGRAPH & TELEPHONE	13	1992–2001

Locations

Location	Patents	Span
Yokosuka, JP	9	1992–2000
Tokyo, JP	2	1999–2001
Kanagawa, JP	2	1993–1994