Inventor
Masashige Ishizaka
Inventor
Tokyo, JP
Overview
Patents· 29 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus30%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein26%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light13%
H04BTransmission11%
B82YSpecific uses or applications of nanostructures9%
B05DProcesses for applying fluent materials to surfaces, in general2%
H01LSemiconductor devices2%
H04QSelecting2%
H10DInorganic electric semiconductor devices2%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h102%
PatentTitleYear
9,964,704Spot size converter, light source, optical transmitter, optical receiver and optical transmitter-receiver20189,904,011'Optical waveguide, optical interposer and light source'20189,871,347'Semiconductor light emitting device and optical transceiver'20189,729,246'Manufacturing method for a phase modulation system with ultraviolet discharge of accumulated charges'20179,664,981'Integrated light source and light output control method'20179,628,190'Optical transmitter and optical communication device'20179,612,411'Semiconductor optical waveguide device with an anti-reflection diffraction grating formed on both lateral sides of a core layer along a direction of optical propagation'20179,429,706'Optical waveguide coupler and method for manufacturing same'20169,297,956'Optical device, optical transmitter, optical receiver, optical transceiver, and method of manufacturing optical device'20169,235,000'Optical semiconductor apparatus'20169,195,001'Spot size converter, optical transmitter, optical receiver, optical transceiver, and method of manufacturing spot size converter'20159,151,894'Light source circuit and light source device equipped with same'20159,151,892'Spot size converter and method for making the same'20159,128,240'Spot-size converter, manufacturing method thereof, and integrated optical circuit device'20159,130,352'Optical semiconductor device, light emitting device, optical transmitting device, and method of manufacturing optical semiconductor device'20158,379,300'Wavelength-variable light source with dual resonator loop circuit'20138,126,301'Optical waveguide and method for producing the same'20127,616,843'Optical functional device and fabrication process of the same'20097,546,005'Optical switch and path switching method'20096,646,775'Light source for integrating modulator and module for optical communication'20036,477,311'Method and device for selecting light source for optical communication'20026,426,236'Method for making semiconductor optical modulator'20026,318,906'Optical communication module'20016,150,667'Semiconductor optical modulator'20006,002,510'Driving apparatus for optical modulator and driving apparatus for modulator integrated light source'19995,999,298'Electroabsorption optical intesity modulator having a plurality of absorption edge wavelengths'19995,953,149'Semiconductor electroabsorption optical modulator'19995,757,985'Semiconductor mach-zehnder-type optical modulator'19985,655,034'Mach-Zehnder type modulator and method of driving the same'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2018Patents assigned to NEC CORP (29)· patent assignee history
1997–2018Based in Tokyo, JP· patent location history
2012–2015Patents assigned to ISHIZAKA MASASHIGE (3)· patent assignee history
2015–2018Patents assigned to FUJITSU LTD (11)· patent assignee history
2015Patents assigned to FUJIOKA NOBUHIDE (1)· patent assignee history
2015Patents assigned to NAKAMURA SHIGERU (1)· patent assignee history
2018Based in Minato-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NEC CORP | 29 | 1997–2018 |
| FUJITSU LTD | 11 | 2015–2018 |
| ISHIZAKA MASASHIGEself | 3 | 2012–2015 |
| FUJIOKA NOBUHIDE | 1 | 2015 |
| NAKAMURA SHIGERU | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 28 | 1997–2018 |
| Minato-ku, JP | 1 | 2018 |