1
Tetsuzo Yoshimura, Yashuhito Takahashi, Masaaki Inao, Michael G Lee, William Chou, Solomon I Beilin, Wen chou Vincent Wang, James J Roman, Thomas J Massingill: Systems based on opto-electronic substrates with electrical and optical interconnections and methods for making. Fujitsu, Coudert Brothers, January 29, 2002: US06343171 (159 worldwide citation)

Opto-electrical systems having electrical and optical interconnections formed in thin layers with thin-film active devices are disclosed. In one embodiment, optical connections are made between the edge of one substrate and the surface of another substrate with the use of photorefractive materials. ...


2
Tetsuzo Yoshimura, Yasuhito Takahashi, James Roman, Mark Thomas McCormack, Solomon I Beilin, Wen chou Vincent Wang, Masaaki Inao: Optical coupling structures and the fabrication processes. Fujitsu, Sheppard Mullin Richter & Hampton, January 27, 2004: US06684007 (121 worldwide citation)

An optical apparatus including an optical substrate having an embedded waveguide and an optical device adapted to receive light transmitted from an end of the waveguide. The optical apparatus includes a coupling structure for coupling the optical device to the substrate. The coupling structure has a ...


3
Tetsuzo Yoshimura, Yashuhito Takahashi, Masaaki Inao, Michael G Lee, William Chou, Solomon I Beilin, Wen chou Vincent Wang, James J Roman, Thomas J Massingill: Multi-layer opto-electronic substrates with electrical and optical interconnections and methods for making. Fujitsu, Sheppard Mullin Richter & Hampton, January 18, 2005: US06845184 (101 worldwide citation)

Opto-electrical systems having electrical and optical interconnections formed in thin layers are disclosed. In one set of preferred embodiments, optical signals are conveyed between layers by respective vertical optical couplers disposed on the layers. In other preferred embodiments, optical signals ...


4
Tetsuzo Yoshimura, Yashuhito Takahashi, Masaaki Inao, Michael G Lee, William Chou, Solomon I Beilin, Wen chou Vincent Wang, James J Roman, Thomas J Massingill: Three-dimensional opto-electronic modules with electrical and optical interconnections and methods for making. Fujitsu, Sheppard Mullin Richter & Hampton, February 10, 2004: US06690845 (82 worldwide citation)

Three-dimensional opto-electronic modules having a plurality of opto-electronic (O/E) layers, with optical signals being routed between O/E layers within one or more three-dimensional volumes, are disclosed. In preferred embodiments, the O/E layers are disposed over and above one another with at lea ...


5
Tetsuzo Yoshimura, Wataru Sotoyama, Takeshi Ishitsuka, Koji Tsukamoto, Shigenori Aoki, Satoshi Tatsuura, Katsusada Motoyoshi, Yasuhiro Yoneda: Active optical circuit sheet or active optical circuit board, active optical connector and optical MCM, process for fabricating optical waveguide, and devices obtained thereby. Fujitsu, Armstrong Westerman Hattori McLeland & Naughton, November 10, 1998: US05835646 (77 worldwide citation)

An active optical circuit sheet or active optical circuit board wherein an electro optical switch or optical modulator is driven with a voltage (SIGin) from an electronic device, the electrical signal (SIGin) is converted to an optical signal, transmitted and then converted to an electrical signal ( ...


6
Tetsuzo Yoshimura, Yashuhito Takahashi, Masaaki Inao, Michael G Lee, William Chou, Solomon I Beilin, Wen chou Vincent Wang, James J Roman, Thomas J Massingill: Opto-electronic substrates with electrical and optical interconnections and methods for making. Fujitsu, Coudert Brothers, August 26, 2003: US06611635 (72 worldwide citation)

Disclosed is device and/or material integration into thin opto-electronic layers, which increase room for chip-mounting, and reduce the total system cost by eliminating the difficulty of optical alignment between opto-electronic devices and optical waveguides. Opto-electronic devices are integrated ...


7
Tetsuzo Yoshimura, Yashuhito Takahashi, Kiyoshi Kuwabara, Solomon I Beilin, Michael Peters, Wen Chou Vincent Wang, Masaaki Inao: Optical reflective structures and method for making. Fujitsu, Sheppard Mullin Richter & Hampton, March 16, 2004: US06706546 (63 worldwide citation)

A method of constructing an electronic circuit assembly comprising forming at least one electrode on a substrate; forming a layer of undercladding material upon the substrate and over the electrode; and forming a wave guide core layer on the layer of cladding material. The wave guide layer is patter ...


8
Tetsuzo Yoshimura, Yasuhito Takahashi, James Roman, Solomon I Beilin, Wen chou Vincent Wang, Masaaki Inao: Single and multilayer waveguides and fabrication process. Fujitsu, Sheppard Mullin Richter & Hampton, August 31, 2004: US06785447 (62 worldwide citation)

An optoreflective structure for reflecting an optical signal following a path defined by an optical waveguide comprising a first cladding layer having a first planar cladding surface; a waveguide disposed on the first cladding layer; and a second cladding layer disposed on the waveguide and having a ...


9
Tetsuzo Yoshimura, Toshiro Futatsugi: Non-linear optical device using quantum dots. Fujitsu, Armstrong Westerman Hattori McLeland & Naughton, September 25, 2001: US06294794 (62 worldwide citation)

A non-linear optical device includes a plurality of quantum dots in an active layer such that the quantum dots have a composition or doping modified asymmetric in a direction perpendicular to the active layer.


10
Tetsuzo Yoshimura, Wataru Sotoyama: Optical device and light waveguide integrated circuit. Fujitsu, Armstrong Westerman Hattori McLeland & Naughton, December 29, 1998: US05854868 (58 worldwide citation)

A process for integrating optical devices and optical waveguides which comprises forming a refractive index distribution pattern and/or waveguide pattern on a substrate after mounting an optical device on the substrate.