Inventor
AKASHI TAMOTSU
JP37 patents
⚠️ This page may combine multiple inventors who share the name “AKASHI TAMOTSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
25 patentsUS6178212B1Jan 23, 2001
Retiming circuit and method for performing retiming
FUJITSU LTD83 citations98
US5619601AApr 8, 1997
Optical switch and optical distributor using polarization control and partial reflection
FUJITSU LTD89 citations94
US6429976B1Aug 6, 2002
Optical switch using tilt mirrors
FUJITSU LTD25 citations93
US7330617B2Feb 12, 2008
Wavelength selective optical switch, and optical device provided with spectroscopic function
FUJITSU LTD30 citations92
US7636503B2Dec 22, 2009
Wavelength selective switch
FUJITSU LTD9 citations84
US6771426B2Aug 3, 2004
Input-output optical system of spatially optical coupled type, and optical switch
FUJITSU LTD19 citations84
US7447399B2Nov 4, 2008
Optical switch, and apparatus and method for controlling optical switch
FUJITSU LTD11 citations83
US7424183B2Sep 9, 2008
Collimator array and method for manufacturing the same
FUJITSU LTD8 citations74
US7340128B2Mar 4, 2008
Wavelength selection device
FUJITSU LTD8 citations74
US6671074B2Dec 30, 2003
Optical receiver for burst transmission system
FUJITSU LTD12 citations74
US9130680B2Sep 8, 2015
Optical transmitter and modulated optical signal generating method
FUJITSU LTD2 citations63
US7580599B2Aug 25, 2009
Optical switch and MEMS package
FUJITSU LTD2 citations63
US7466915B2Dec 16, 2008
Mirror controller for optical switch
FUJITSU LTD2 citations63
US7302133B2Nov 27, 2007
Optical switch
FUJITSU LTD3 citations63
US7263254B2Aug 28, 2007
Optical switch and control method therefor
FUJITSU LTD4 citations63
US6901222B2May 31, 2005
Optical transmission system and terminal device applicable to the system
FUJITSU LTD5 citations63
US7982957B2Jul 19, 2011
Optical apparatus using a lens array
FUJITSU LTD3 citations62
US7948670B2May 24, 2011
Optical attenuator
FUJITSU LTD1 citations52
US7653273B2Jan 26, 2010
Optical switch
FUJITSU LTD1 citations52
US7233716B2Jun 19, 2007
Optical switch
FUJITSU LTD1 citations52
US7031565B2Apr 18, 2006
Photonic switch
FUJITSU LTD1 citations52
US6925222B2Aug 2, 2005
Photonic switch
FUJITSU LTD0 citations52
US7787721B2Aug 31, 2010
Mirror, mirror unit, and optical switch
FUJITSU LTD0 citations51
US7706049B2Apr 27, 2010
Mirror device and optical apparatus
FUJITSU LTD0 citations42
US7613370B2Nov 3, 2009
Optical switch and method of adjusting optical switch
FUJITSU LTD0 citations41
FUJITSU OPTICAL COMPONENTS LTD
7 patentsUS9450680B2Sep 20, 2016
Optical communication system, optical transmitter, and optical receiver
FUJITSU OPTICAL COMPONENTS LTD7 citations84
US9344199B2May 17, 2016
Optical receiver and light receiving method
FUJITSU OPTICAL COMPONENTS LTD4 citations72
US9063355B2Jun 23, 2015
Optical modulation device and control method in optical modulation device
FUJITSU OPTICAL COMPONENTS LTD3 citations63
US11387910B2Jul 12, 2022
Optical module, transmission device, and operating point control method
FUJITSU OPTICAL COMPONENTS LTD1 citations62
US12197101B2Jan 14, 2025
Optical waveguide device and optical modulator
FUJITSU OPTICAL COMPONENTS LTD0 citations53
US11112625B2Sep 7, 2021
Optical modulator including electro-optic polymer in grooves having multiple widths
FUJITSU OPTICAL COMPONENTS LTD0 citations52
US9450677B2Sep 20, 2016
Optical transmitter and control apparatus of optical modulator
FUJITSU OPTICAL COMPONENTS LTD1 citations52
NIPPON OILS & FATS CO LTD
2 patentsUS4394170AJul 19, 1983
Composite sintered compact containing high density boron nitride and a method of producing the same
NIPPON OILS & FATS CO LTD111 citations95
US4566905AJan 28, 1986
High density boron nitride-containing sintered body for cutting tool and a method of producing the same
NIPPON OILS & FATS CO LTD12 citations73