Patents by Inventor Sakan Iwashita
Sakan Iwashita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7539510Abstract: A portable telephone having an antenna for transmitting and/or receiving a wireless signal, a microphone for generating a sound signal corresponding to an input sound, a transmitting and receiving circuit for generating a wireless signal corresponding to the sound signal generated by the microphone to transmit the wireless signal through the antenna and generating a sound signal corresponding to the wireless signal received by the antenna, a receiver for outputting sound corresponding to the sound signal generated by the transmitting and receiving circuit, a shield case for surrounding and housing all or part of the transmitting and receiving circuit and being conductive, an electric wave absorber with one face in contact with a predetermined area of the shield case for absorbing an electric wave, and a conductive layer formed on another face of the electric wave absorber and electrically connected to the shield case.Type: GrantFiled: June 7, 2001Date of Patent: May 26, 2009Assignee: Sony CorporationInventors: Junichi Toyoda, Katsumi Okayama, Sakan Iwashita, Yoshiki Kanayama, Hiroki Ito
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Patent number: 6660941Abstract: An electronic parts mounting board includes an electrode circuit base member having electrodes on at least one surface; projecting electrodes bonded to the electrodes of the electrode circuit base member; an insulating member provided on the electrode circuit base member in such a manner as to insulate the electrodes of the electrode circuit base member and the projecting electrodes; and circuit electrode patterns provided on the insulating member and the projecting electrodes. In this mounting board, the projecting electrodes are formed by forming specific projecting conductive members at specific positions of the circuit electrode patterns by plating, and pressing the projecting conductive members in the insulating member so as to pass through the insulating member and reach the electrodes of the electrode circuit base member.Type: GrantFiled: February 21, 2002Date of Patent: December 9, 2003Assignee: Sony CorporationInventors: Sakan Iwashita, Haruhiko Makino, Hidetoshi Kusano
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Patent number: 6503963Abstract: A radio wave absorbent capable of absorbing radiowaves in the space saving and efficient manner and capable of coping with up to high frequency bands, as well as a manufacturing method thereof are provided. In a radio wave absorbent in which magnetic particles comprising a soft magnetic metal material are mixed with a matrix of a polymeric material or ceramics, the magnetic particles are formed into elliptic plate particles.Type: GrantFiled: December 8, 2000Date of Patent: January 7, 2003Assignee: Sony CorporationInventors: Junichi Toyoda, Sakan Iwashita, Katsumi Okayama
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Patent number: 6473024Abstract: An electromagnetic wave absorber including a mixture comprising a magnetic material particle and a binding material. The magnetic material includes a nucleus of an organic material and a magnetic material film is formed on a surface of the nucleus.Type: GrantFiled: February 7, 2001Date of Patent: October 29, 2002Assignee: Sony CorporationInventors: Junichi Toyoda, Katsumi Okayama, Sakan Iwashita
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Publication number: 20020112879Abstract: An electronic parts mounting board includes an electrode circuit base member having electrodes on at least one surface; projecting electrodes bonded to the electrodes of the electrode circuit base member; an insulating member provided on the electrode circuit base member in such a manner as to insulate the electrodes of the electrode circuit base member and the projecting electrodes; and circuit electrode patterns provided on the insulating member and the projecting electrodes. In this mounting board, the projecting electrodes are formed by forming specific projecting conductive members at specific positions of the circuit electrode patterns by plating, and pressing the projecting conductive members in the insulating member so as to pass through the insulating member and reach the electrodes of the electrode circuit base member.Type: ApplicationFiled: February 21, 2002Publication date: August 22, 2002Applicant: Sony CorporationInventors: Sakan Iwashita, Haruhiko Makino, Hidetoshi Kusano
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Patent number: 6426457Abstract: Disclosed is an electromagnetic wave shielding apparatus for shielding electromagnetic waves generated from a circuit so as to prevent the electromagnetic waves from being leaked to the outside of the circuit. The apparatus includes a metal member disposed in such a manner as to be opposed to the circuit, and an electromagnetic wave absorbing member disposed on the metal member, wherein the electromagnetic absorbing member is composed of a carbon layer and coil-like carbon fiber structures. The apparatus is allowed to simply obtain an electromagnetic wave absorbing function without increasing the weight of the apparatus.Type: GrantFiled: April 16, 1999Date of Patent: July 30, 2002Assignee: Sony CorporationInventors: Junichi Toyoda, Sakan Iwashita
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Publication number: 20020029893Abstract: Disclosed is an electromagnetic wave shielding apparatus for shielding electromagnetic waves generated from a circuit so as to prevent the electromagnetic waves from being leaked to the outside of the circuit. The apparatus includes a metal member disposed in such a manner as to be opposed to the circuit, and an electromagnetic wave absorbing member disposed on the metal member, wherein the electromagnetic absorbing member is composed of a carbon layer and coil-like carbon fiber structures. The apparatus is allowed to simply obtain an electromagnetic wave absorbing function without increasing the weight of the apparatus.Type: ApplicationFiled: April 16, 1999Publication date: March 14, 2002Inventors: JUNICHI TOYODA, SAKAN IWASHITA
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Publication number: 20010053673Abstract: A portable telephone having an antenna for transmitting and/or receiving a wireless signal, a microphone for generating a sound signal corresponding to an input sound, a transmitting and receiving circuit for generating a wireless signal corresponding to the sound signal generated by the microphone to transmit the wireless signal through the antenna and generating a sound signal corresponding to the wireless signal received by the antenna, a receiver for outputting sound corresponding to the sound signal generated by the transmitting and receiving circuit, a shield case for surrounding and housing all or part of the transmitting and receiving circuit and being conductive, an electric wave absorber with one face in contact with a predetermined area of the shield case for absorbing an electric wave, and a conductive layer formed on another face of the electric wave absorber and electrically connected to the shield case.Type: ApplicationFiled: June 7, 2001Publication date: December 20, 2001Applicant: Sony CorporationInventors: Junichi Toyoda, Katsumi Okayama, Sakan Iwashita, Yoshiki Kanayama, Hiroki Ito
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Publication number: 20010038353Abstract: There is provided an electromagnetic wave absorber in which uniformity, reproducibility and productivity are raised by forming a metal soft magnetic material flat plate, the surface of which is smoothed, of a regular shape disk or elliptical shape easily, at low cost, stably and certainly. In the electromagnetic wave absorber composed of a mixture of a magnetic material particle 21 and an organic binding material, the magnetic material particle 21 is constituted by a nucleus 22 made of organic material and a magnetic material film 23 formed on its surface.Type: ApplicationFiled: February 7, 2001Publication date: November 8, 2001Inventors: Junichi Toyoda, Katsumi Okayama, Sakan Iwashita
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Publication number: 20010020054Abstract: A radio wave absorbent capable of absorbing radiowaves in the space saving and efficient manner and capable of coping with up to high frequency bands, as well as a manufacturing method thereof are provided. In a radio wave absorbent in which magnetic particles comprising a soft magnetic metal material are mixed with a matrix of a polymeric material or ceramics, the magnetic particles are formed into elliptic plate particles.Type: ApplicationFiled: December 8, 2000Publication date: September 6, 2001Applicant: Sony CorporationInventors: Junichi Toyoda, Sakan Iwashita, Katsumi Okayama