Patents by Inventor Yoshiaki Kato

Yoshiaki Kato 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).

  • Publication number: 20060172624
    Abstract: An upper tier terminal is provided with a fitting portion and a board attachment portion. When the upper tier terminal is being fabricated, a first wire member which is a component of the fitting portion and a second wire member which is a component of the board attachment portion, whole peripheral surfaces of which have been subjected to a plating treatment beforehand, are employed. End portions of the first wire member and the second wire member are mutually superposed, and the first wire member and the second wire member are joined. Thus, the fitting portion is formed and the board attachment portion is formed. Hence, a surface of the upper tier terminal is structured by a plating layer at the peripheral surface of the first wire member and a plating layer at the peripheral surface of the second wire member. Consequently, a post-plating treatment can be rendered unnecessary.
    Type: Application
    Filed: January 19, 2006
    Publication date: August 3, 2006
    Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Katsumasa Matsuoka, Yoshiaki Kato, Harehide Sasaki
  • Patent number: 7081620
    Abstract: In order to provide an atmospheric pressure ionization mass spectrometer system which allows for equal high sensitivity analysis for LCs with different flow rates, there is provided an atmospheric pressure ionization mass spectrometer system comprising: an atmospheric pressure ion source for ionizing a sample solution under atmospheric pressure, a mass spectrometer for mass analyzing the ions in an evacuated space, a fine hollow tube on a partition wall between the atmospheric pressure ion source and the mass spectrometer, the ions generated in the atmospheric pressure ion source being introduced through the fine tube into the mass spectrometer to be mass analyzed, wherein the fine tube consists of a first fine tube and a second fine tube which are different in diameter, the second fine tube being inserted in the first fine tube, the ions and gas generated in the atmospheric pressure ion source are introduced into the mass spectrometer through the second fine tube, and a gas is fed into a space between the fi
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: July 25, 2006
    Assignee: Hitachi High -Technologies Corporation
    Inventor: Yoshiaki Kato
  • Patent number: 7075069
    Abstract: Depending on the RF driving voltage amplitude value and the frequency of each frequency component of wideband auxiliary AC voltages, the wideband auxiliary AC voltage comprising plural different frequency components is optimized so that undesired ions having mass-to-charge ratios within the required range will be resonantly ejected from the ion trap electrodes.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: July 11, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kiyomi Yoshinari, Yoshiaki Kato, Katsuhiro Nakagawa, Shinji Nagai
  • Publication number: 20060124847
    Abstract: A mass analysis apparatus comprising a first ion source which ionizes a sample and produces sample ions, a second ion source which produces reactant ions having a polarity opposite to the polarity of the sample ions, and a mass spectrometer, wherein said second ion source is provided between said first ion source and said mass spectrometer apart from the axis of a flow of the sample ions discharged from said first ion source and emits reactant ions to the flow of sample ions discharged from said first ion source.
    Type: Application
    Filed: January 10, 2006
    Publication date: June 15, 2006
    Inventor: Yoshiaki Kato
  • Patent number: 7059903
    Abstract: A connector enables a size reduction while maintaining a function of reliably preventing terminal members from falling out of terminal holes. In this connector, a plate spring piece is provided in a terminal hole of a connector housing, with a length thereof set to an axial direction of the terminal hole, and an engaging pawl protrudes from the plate spring piece. When a female terminal is inserted into the terminal hole, the engaging pawl engages with the female terminal and bends the plate spring piece downward, enabling the insertion. When the female terminal is inserted to a predetermined depth in the terminal hole, the plate spring piece returns and the engaging pawl moves into an engaging hole of the female terminal. The plate spring piece has a structure of which one length direction end portion and one side portion, along the length direction, are fixed to the connector housing.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: June 13, 2006
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Harehide Sasaki, Reiki Okamoto, Yoshiaki Kato, Masato Minakata, Atsushi Nishida
  • Publication number: 20060076585
    Abstract: An object of the present invention is to provide a semiconductor resistor that allows improvement in saturation voltage characteristics and a method for manufacturing the same. The semiconductor resistor of the present invention is formed on the substrate on which a GaAs FET is formed. The GaAs FET includes: a channel layer; a Schottky layer formed on the channel layer and made of undoped InGaP; and a contact layer formed on the Schottky layer. The semiconductor resistor includes: a contact layer including a part of the contact layer isolated from the GaAs FET; an active region including a part of the Schottky layer and a part of the channel layer, both of which are isolated from the GaAs FET; and two ohmic electrodes formed on the contact layer, and the Schottky layer isolated from the GaAs FET is exposed in an area between the two ohmic electrodes.
    Type: Application
    Filed: September 26, 2005
    Publication date: April 13, 2006
    Applicant: Matsushita Electric Industrial, Co., Ltd.
    Inventors: Yoshiaki Kato, Yoshiharu Anda, Akiyoshi Tamura
  • Patent number: 7026610
    Abstract: There is provided an analyzer system capable of easily improving the efficiency of a charge reduction due to ion/ion reactions. A mass spectrometer system includes: a first ion source for ionizing a sample to be measured; a second ion source for producing ions of a polarity reversed from that of the ions produced in said first ion source; an ion deflector for introducing and deflecting the ions of said first and second ion sources; an ion-trap mass spectrometer including a ring electrode and a pair of endcap electrodes; and a detector for detecting the ions ejected from the mass spectrometer, wherein the ions from said first and second ion sources are introduced together through the ion deflector into the ion-trap mass spectrometer; the ions from the two ion sources are mixed in the ion-trap mass spectrometer; and in that the ions are then detected in the detector.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: April 11, 2006
    Assignee: Hitachi High-Technologies Corporation
    Inventor: Yoshiaki Kato
  • Patent number: 7022981
    Abstract: A mass analysis apparatus comprising a first ion source which ionizes a sample and produces sample ions, a second ion source which produces reactant ions having a polarity opposite to the polarity of the sample ions, and a mass spectrometer, wherein said second ion source is provided between said first ion source and said mass spectrometer apart from the axis of a flow of the sample ions discharged from said first ion source and emits reactant ions to the flow of sample ions discharged from said first ion source.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: April 4, 2006
    Assignee: Hitachi High-Technologies Corporation
    Inventor: Yoshiaki Kato
  • Publication number: 20060050413
    Abstract: An optical pickup includes at least a laser light source emitting a laser beam, a collimator lens system including a plurality of lenses for collimating the light beam emitted from the laser light source and incident thereupon as diffused light, and an objective lens. The laser beam transmitted through the collimator lens system is incident upon the objective lens. The collimator lens system includes a first lens unit held so as to be movable in an optical axis direction of the laser beam and a fixed second lens unit.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 9, 2006
    Applicant: SONY CORPORATION
    Inventors: Katsuhiro Seo, Yoshiaki Kato, Yoshiki Okamoto, Takeshi Yonezawa
  • Publication number: 20060046581
    Abstract: A connector in which a housing and a retainer are coupled with sufficient strength when the connector is reduced in scale. In this connector, provisional anchoring pieces and main anchoring pieces are provided at two end portions of an inner peripheral wall of an insertion hole formed in the housing, with lengths along a direction that intersects a direction of insertion of the retainer into the insertion hole. At outer sides of two end portions of the retainer, anchorage pawls, which are formed to be engageable with the main anchoring pieces and the provisional anchoring pieces, are provided with lengths along the intersecting direction. With this structure, when the retainer is inserted into the insertion hole of the housing, the anchorage pawls engage, at two end portions of the connector, with the provisional anchoring pieces and with the main anchoring pieces.
    Type: Application
    Filed: September 1, 2005
    Publication date: March 2, 2006
    Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Reiki Okamoto, Harehide Sasaki, Yoshiaki Kato
  • Publication number: 20060038019
    Abstract: The present invention relates to a portable terminal apparatus with a telephone function such as a portable telephone, and devises mounting of a camera module so as to combine multifunctionality and miniaturization in a high level. It includes a chassis, a camera module including a lens and an image pickup device, a circuit board placed and fixed on the chassis and a camera holder supporting the camera module and fixed on the circuit board to be on the chassis together with the circuit board, where the camera holder has an opening for the camera module to look in and a wall section surrounding the opening and surrounding a side face of the camera module to support the camera module.
    Type: Application
    Filed: December 23, 2004
    Publication date: February 23, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Yoshifumi Kajiwara, Yoshiaki Kato, Nariyasu Hayakawa, Toshikazu Ishioka, Hiroaki Sakashita, Manabu Hongo, Hidehiko Hizuka
  • Publication number: 20060037807
    Abstract: The present invention relates to a portable terminal apparatus with a telephone function such as a portable telephone, which has a structure capable of efficiently emitting a voice from a speaker from both a front face and a backside of a housing. The portable terminal has: a first cover that includes a first sound outlet for emitting a sound from the speaker through the front of the portable terminal apparatus; a second cover that includes a second sound outlet for emitting a sound from the speaker through the back of the portable terminal apparatus; and a gasket accommodated at a position sandwiched between the first cover and the speaker.
    Type: Application
    Filed: November 12, 2004
    Publication date: February 23, 2006
    Applicant: Fujitsu Limited
    Inventors: Manabu Hongo, Yoshiaki Kato, Nariyasu Hayakawa, Toshikazu Ishioka, Hiroaki Sakashita, Yoshifumi Kajiwara, Hidehiko Hizuka
  • Publication number: 20060040568
    Abstract: In a terminal manufacturing method of the present invention, first a thin plate-like body including a thin plate-like terminal portion and a thin plate-like leg portion is formed with a die. The thin plate-like terminal portion has a shape corresponding to a terminal portion 24 of an upper-level terminal 22 and a terminal portion 30 of a lower-level terminal 28. The thin plate-like leg portion has the shape corresponding to a leg portion 26 of the upper-level terminal 22 and a leg portion 32 of the lower-level terminal 28. Then, the upper-level terminal 22 is formed by bending the thin plate-like leg portion toward one side of a plate-thickness direction. Also, the lower-level terminal 28 is formed by bending the thin plate-like leg portion toward the other side of the plate-thickness direction. Thus, by simply changing the bending direction of the thin plate-like leg portion, either the upper-level terminal 22 or the lower-level terminal 28 can be formed.
    Type: Application
    Filed: August 9, 2005
    Publication date: February 23, 2006
    Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Harehide Sasaki, Reiki Okamoto, Yoshiaki Kato
  • Patent number: 6992966
    Abstract: An optical pickup device including a light source, an objective lens for converging a light beam emitted from the light source at a signal recording surface of an optical recording medium and irradiating the signal recording surface of the optical recording medium with the light beam, and a liquid crystal device, disposed in a light path between the light source and the objective lens, for giving a predetermined phase distribution to transmission light that passes through the liquid crystal device, with both front and back surfaces of the liquid crystal device being flat surfaces. In the optical pickup device, the liquid crystal device is constructed by sandwiching a liquid crystal molecule layer by a pair of transparent substrate.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: January 31, 2006
    Assignee: Sony Corporation
    Inventors: Kenji Yamamoto, Kiyoshi Osato, Yoshiaki Kato
  • Patent number: 6991486
    Abstract: A connector that can be mounted to a substrate in a stable manner and a mounting structure of the connector to the substrate are provided. A connector according to the present invention includes a housing, which has a base, bosses, and terminals. Gaps are formed on portions of the base between the terminals and the bosses. The gaps extend to surround the terminals. Another connector according to the present invention includes a housing, which has a base, arms, bosses, and terminals. The arms are flexible and extend from the housing. Each boss is located at the distal end of one of the arms.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: January 31, 2006
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Tatsuya Takai, Katsumasa Matsuoka, Yoshiaki Kato, Shigeru Hayashi, Kazunori Nakane
  • Publication number: 20060009091
    Abstract: In order to prevent a fixing terminal from being dislocated from regular-mounting-position on a connector main body when force is applied from outside before placed on a substrate, a surface-mounted connector including a connector main body to be placed on a substrate, a fixing terminal that is temporarily fixed to a side wall of the connector main body by being press-fitted, along the side wall, from a side opposite to that in which the connector main body is placed on the substrate, and that, in the temporarily fixed state, is soldered to the substrate, thereby allowing the connector main body to be mounted on the substrate, and shielding walls provided integrally with the connector main body alongside the fixing terminal in the temporarily fixed state so as to correspond to the fixing terminal, and preventing the fixing terminal in the temporarily fixed state from being interfered from outside, is provided.
    Type: Application
    Filed: July 7, 2005
    Publication date: January 12, 2006
    Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Harehide Sasaki, Reiki Okamoto, Yoshiaki Kato
  • Patent number: 6977373
    Abstract: An ion-trap mass analyzing apparatus having means for generating ion-capture electric fields asymmetrical with respect to a reference plane containing a central point of a ring electrode and perpendicular to a central axis of the ring electrode in the inside of an ion trap to resonantly amplify ions rapidly to emit the ions from the ion trap in a short time to thereby permit high-sensitive high-accurate mass analysis stably regardless of the structural stability of ions as a subject of analysis.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: December 20, 2005
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Kiyomi Yoshinari, Yoshiaki Kato, Tadao Mimura, Masaru Tomioka
  • Publication number: 20050269483
    Abstract: Providing an imaging apparatus capable of suppressing deterioration of image qualities and output properties when a wafer thickness of the imaging apparatus is made thin. The imaging apparatus having one or more output circuits in series and a buffer circuit 6, and processing luminance signals from photodetectors to output image information, the buffer circuit performing impedance conversion on signals outputted from a final output circuit of the one or more output circuits, the final output circuit being a source follower circuit that has an active element and a current source circuit 5 which is inserted between a source terminal of the active element and a reference voltage terminal, wherein the current source circuit and the buffer circuit 6 are external to a solid-state image sensor 1 having the photodetectors, and a main part of the current source circuit 5 and a main part of the buffer circuit 6 are in a single package.
    Type: Application
    Filed: June 3, 2005
    Publication date: December 8, 2005
    Inventors: Akiyoshi Kohno, Yoshiaki Kato, Yuji Matsuda
  • Publication number: 20050253060
    Abstract: An ion trap/time-of-flight mass spectrometer, which can perform accurate mass measurement of a product ion based on MS/MS and MSn has an ion source for ionizing a sample, an ion trap capable of temporarily trapping ions, and a time-of-flight mass spectrometer. The ion source produces ions of the sample as a measurement target and ions of a reference sample each having a known mass value. A precursor ion is selected from among the ions of the measurement target sample, and the selected precursor ion is excited and fragmented in the ion trap to produce a product ion. The reference sample ions are introduced to and trapped in the ion trap. The trapped product ion and reference sample ions are expelled out of the ion trap and introduced to the time-of-flight mass spectrometer, thereby obtaining a mass spectrum.
    Type: Application
    Filed: May 13, 2005
    Publication date: November 17, 2005
    Inventors: Tadao Mimura, Yoshiaki Kato, Toyoharu Okumoto
  • Patent number: RE38871
    Abstract: The present invention is to provide a decoder which detects a start code in a layered coded data stream on a layer basis for improving an error detecting function to reduce possible damaging effects, and replaces a detected start code with minor error by an appropriate start code to maintain decoding. The decoder includes a unique pattern detector which detects a start code pattern in a layered coded data stream, a start code identifier which identifies the detected start code pattern based on a given condition, a similarity calculator which calculates similarity as an evaluation between the error detected start code pattern and an expected start code based on layer, and a similarity based replacement identifier which replaces the error detected start code pattern by the most appropriate replacement selected based on the similarity based evaluation, and otherwise the priority based replacement identifier which selects a replacement by the priority order.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: November 8, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shun-ichi Sekiguchi, Tokumichi Murakami, Yoshiaki Kato