1
Masahide Tokuda, Takeshi Kato, Hiroyuki Itoh, Masayoshi Yagyu, Yuuji Fujita, Mitsuo Usami: Chip connection structure having diret through-hole connections through adhesive film and wiring substrate. Hitachi, Antonelli Terry Stout & Kraus, February 9, 1999: US05870289 (218 worldwide citation)

A structure for connecting an integrated circuit chip to a wiring substrate which implements high-density packaging, high-density connection, high-speed signal transmission, and low cost. An integrated circuit is connected to a wiring substrate by means of flip-chip die bonding using an adhesive fil ...


2
Takeshi Kato, Yuuji Fujita, Kenichi Mizuishi, Atumi Kawata, Hiroyuki Itoh: Semiconductor device having an optical waveguide interposed in the space between electrode members. Hitachi, Fay Sharpe Beall Fagan Minnich & McKee, February 28, 1995: US05394490 (123 worldwide citation)

A clock signal supply system is disclosed for a semiconductor device with a semiconductor chip and a wiring substrate connected in flip-chip fashion and an optical waveguide interposed in the space between electrode members, in which the mutual arrangement of the electrical interconnection and the o ...


3
Yuuji Fujita, Kenichi Mizuishi: Semiconductor substrate having wiring conductors at a first main surface electrically connected to plural pins at a second main surface. Hitachi, Fay Sharpe Beall Fagan Minnich & McKee, January 16, 1996: US05485039 (58 worldwide citation)

A semiconductor device includes a semiconductor substrate having a pair of opposed main surfaces with a wiring conductor provided on one of the main surfaces; the substrate having at least one through hole extending therethrough so as to be perpendicular to the main surfaces; at least one electrical ...


4
Yuuji Fujita, Tadashi Sezume, Kitsusho Kitano, Kiyotada Narukawa, Takashi Mikami, Tetsuya Kawamura, Shigeru Sato, Takeyoshi Nishio, Toshio Yokoi, Takao Nomura: Thermoplastic polyolefin-polycarbonate composition. Tonen Sekiyukagaku Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Finnegan Henderson Farabow Garrett & Dunner, June 4, 1991: US05021504 (18 worldwide citation)

A thermoplastic resin composition having well-balanced properties which comprises 95-5 weight % of polycarbonate, 5-95 weight % of polyolefin and a particular combination of additional components selected from a styrene-ethylene.propylene copolymer, a styrene-ethylene. butyrene-styrene block copolym ...


5
Yu Hayakawa, Tsuyoshi Ogasawara, Yuuji Fujita, Masao Sakaizawa, Kimiho Kosegaki, Toshihiko Sugano, Takao Tayano, Toru Suzuki, Yasuo Maruyama, Osamu Shibata, Takao Usami: Propylene block copolymer and propylene resin composition. Japan Polychem Corporation, Oblon Spivak McClelland Maier & Neustadt P C, November 30, 2004: US06825280 (18 worldwide citation)

Disclosed are a propylene polymer composition possessing excellent balance among rigidity and low warpage, resistance to deterioration caused by thermal oxidation during processing, weathering resistance, antistatic properties, and low bleeding properties, and a propylene resin composition which can ...


6
Yuuji Fujita, Masahide Tokuda: Semiconductor integrated circuit device with cooling system and manufacturing method therefor. Hitachi, Fay Sharpe Beall Fagan Minnich & McKee, October 5, 1993: US05251100 (13 worldwide citation)

A semiconductor integrated circuit device is equipped with a cooling system which serves to cool a plurality of integrated circuit chips mounted on a circuit board. The cooling system is kept in contact with the upper surfaces of the plurality of integrated circuit chips. A chip surface arranging pl ...


7
Yasuo Amano, Shigeo Nakamura, Osamu Narisawa, Mikio Tokuyama, Masahito Kobayashi, Hiroyasu Sasaki, Yuuji Fujita: Magnetic disk apparatus. Hitachi, Townsend and Townsend and Crew, August 24, 2004: US06781783 (2 worldwide citation)

Provided is a magnetic disc apparatus comprising a magnetic head for writing and reading data to and from a magnetic disc, a slider for floating up the magnetic head from the magnetic disc on rotation, a suspension having an IC chip mounting surface, for supporting the slider, a positioning mechanis ...


8
Takeshi Ishikawa, Masao Tomioka, Masahiro Osuka, Yuuji Fujita, Yukichi Konami, Takahiro Hayashi: Layered substrate and method for manufacturing same. MITSUBISHI CHEMICAL CORPORATION, Oblon McClelland Maier & Neustadt L, May 15, 2018: US09969146

Provided are a layered substrate that has excellent mechanical properties such as a flexural strength or a flexural modulus applicable to a structural material, the variations in those mechanical properties are small, exhibits excellent formability into a complicated shape, and is able to be molded ...


9
Yuuji Fujita, Makoto Sakaguchi: Laser diode driver. Nec Electronics Corporation, Mcginn Intellectual Property Law Group Pllc, May 24, 2007: US20070116075-A1

A laser diode driver includes a DC current source supplying DC current to a laser diode, a high frequency current source connected in parallel with the DC current source and supplying high frequency current to the laser diode. The laser diode driver further includes a circuit capable of changing the ...


10
Yasuo Amano, Shigeo Nakamura, Osamu Narisawa, Mikio Tokuyama, Masahito Kobayashi, Hiroyashu Sasaki, Yuuji Fujita: Magnetic disk apparatus. Hitachi, Townsend And Townsend And Crew, June 27, 2002: US20020080515-A1

Provided is a magnetic disc apparatus comprising a magnetic head for writing and reading data to and from a magnetic disc, a slider for floating up the magnetic head from the magnetic disc on rotation, a suspension having an IC chip mounting surface, for supporting the slider, a positioning mechanis ...