Inventor

NAKAZAWA MASATAKA

JP22 patents

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

NAKAZAWA MASATAKA

NIPPON TELEGRAPH & TELEPHONE

Laser pulse oscillator

Atomic frequency standard laser pulse oscillator

Wavelength-tunable mode-locked laser, wavelength converter and transmission system

Optical pulse compression device

Semiconductor laser device

JAPAN SCIENCE & TECH AGENCY

Optical fourier transform device and method

Optical pulse compressor, optical function generator, optical pulse compression method, and optical function generation method

Optical transmission method and optical transmission apparatus

OTDM transmission method and apparatus

HITACHI CABLE

Rare earth element-doped optical waveguide and process for producing the same

Optical waveguide type star coupler

ANDO ELECTRIC

Optical pulse generator

Optical pulse generator

ADVANTEST CORP

Laser oscillator

Laser oscillator

NAT INST OF ADVANCED IND SCIEN

Measuring-instrument remote-calibration system and measuring-instrument remote-calibration method

DAI NIPPON PRINTING CO LTD AND

Method of producing phase mask for fabricating optical fiber and optical fiber with bragg&#39;s diffraction grating produced by using the phase mask

FUJITSU LTD

Optical synchronizer

SUMITOMO ELECTRIC INDUSTRIES

Lead-containing fluoride glass, optical fiber and process for producing it

DAINIPPON PRINTING CO LTD

Method of making phase mask for machining optical fiber and optical fiber having bragg diffraction grating produced using the phase mask for machining optical fiber

SUMITOMO ELECTRIC INDUSTTRIES

Lead-containing fluoride glass, optical fiber and process for producing it

NAKAZAWA MASATAKA

Laser apparatus

Method of producing phase mask for fabricating optical fiber and optical fiber with bragg's diffraction grating produced by using the phase mask