Patents by Inventor Hiroyuki Yamazaki

Hiroyuki Yamazaki 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: 20120264962
    Abstract: Disclosed are silazane compounds having two fluoroalkyl groups, represented by the following general formula (1): wherein Rf and Rf? are each a fluoroalkyl group, R1 is a hydrogen atoms or an aliphatic monovalent hydrocarbon group, R2 and R3 are each an aliphatic monovalent hydrocarbon group, R4 is a hydrogen atom or an aliphatic monovalent hydrocarbon group, a and b are each 0 or 1, m, n and p are each an integer of 0 to 6, q is an integer of 1 to 6, and r is 1 or 2. By treating an inorganic material with the silazane compound having two fluoroalkyl groups, high water and oil repellency and high sliding properties can be imparted to the inorganic material in good balance.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki Honma, Ayumu Kiyomori, Tohru Kubota, Daijitsu Harada, Hiroyuki Yamazaki, Masaki Takeuchi
  • Publication number: 20120154826
    Abstract: An image forming apparatus of this invention determines a correction amount for each image signal so as to correct banding as periodic density unevenness in a sub scanning direction, corrects each pixel value of an n-bit image signal in accordance with the correction amount, generates the first corrected image signal, and quantizes, for each pixel, the first corrected image signal into a second corrected image signal of m bits smaller than n bits. This image forming apparatus diffuses, in a main scanning direction, quantization errors at the time of quantization of the first corrected image signal into the second corrected image signal so as to cancel the quantization errors within a predetermined region including a plurality of continuous pixels on a main scanning line.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 21, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hiroyuki Yamazaki
  • Publication number: 20120067926
    Abstract: Provided are a flexible and restorable container main body (1) for housing a medicinal solution; a stopper member (4d; 14d) fixed in the inside of a medicinal solution passage (P) communicated with the container main body (1) for discharging the medicinal solution when the container main body (1) is pressed and deformed; a pressure valve (5) arranged in the medicinal solution passage (P) at a downstream side in the medicinal solution discharge direction further than the stopper member (4d; 14d) being formed with an opening having a circular cross section which contacts the tip portion (4e; 14e) of the stopper member (4d; 14d); and a biasing member (7; 7a) at a downstream side for biasing the pressure valve (5) in a direction opposite to the medicinal solution discharge direction by abutting against a peripheral portion (5b) of the opening of the pressure valve (5).
    Type: Application
    Filed: May 21, 2010
    Publication date: March 22, 2012
    Inventors: Shinichi Ishikawa, Yuji Sugahara, Hiroyuki Yamazaki, Shintaro Adachi, yusuke Ogawa, Kousuke Toujou, Yoshiteru Ishikawa
  • Publication number: 20120027041
    Abstract: A wavelength variable laser includes: a substrate on which an optical coupler is formed as a planar optical waveguide; a DFB array part arranged on the substrate and having DFB laser elements respectively supply optical signals to the optical coupler; and an SOA part arranged on the substrate and having an SOA element configured to amplify an optical signal outputted from the optical coupler. The DFB array part and the SOA part are respectively formed in chips having a same lamination structure to each other. A wavelength variable laser and a modulator integrated wavelength variable laser with high yield ratio can be provided.
    Type: Application
    Filed: March 8, 2010
    Publication date: February 2, 2012
    Inventor: Hiroyuki Yamazaki
  • Publication number: 20120022077
    Abstract: The present invention relates to a novel cyanopyrimidine compound and a pharmaceutical composition which have a safe and potent adenosine A2a receptor agonistic activity.
    Type: Application
    Filed: February 2, 2010
    Publication date: January 26, 2012
    Inventors: Norifumi Sato, Yohei Yuki, Hisashi Shinohara, Yasuhiro Takeji, Kuni Ito, Daisaku Michikami, Keisuke Hino, Hiroyuki Yamazaki
  • Publication number: 20110318996
    Abstract: An electronic grade synthetic quartz glass substrate having a recess, channel or step is manufactured by machining at least one surface of a synthetic quartz glass substrate having a maximum birefringence of up to 3 nm/cm in its entirety to form a recess, channel or step, and removing the residual stress due to machining.
    Type: Application
    Filed: June 28, 2011
    Publication date: December 29, 2011
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Daiyu Okafuji, Masaki Takeuchi, Hiroyuki Yamazaki
  • Publication number: 20110318995
    Abstract: An electronic grade synthetic quartz glass substrate is manufactured by machining a synthetic quartz glass substrate to form a recess, channel or step and polishing the bottom and side surfaces of the recess, channel or step to mirror finish by a working portion of a rotary polishing tool while keeping the working portion in contact with the bottom and side surfaces under independent constant pressures.
    Type: Application
    Filed: June 28, 2011
    Publication date: December 29, 2011
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Daiyu Okafuji, Masaki Takeuchi, Hiroyuki Yamazaki
  • Patent number: 8023281
    Abstract: An inverter apparatus is composed of an insulated metal substrate, a conductive stud, a printed circuit board, a conductive spacer, and a bus bar. An inverter output stage is mounted on the insulated metal substrate. The conductive stud is coupled to a main surface of the insulated metal substrate, and electrically connected with the inverter output stage. The printed circuit board is supported by the stud. The stud is coupled on the rear surface of the printed circuit board. Provided on the main surface of the printed circuit board is a circuit connected to the inverter output stage. The conductive spacer is coupled on the main surface of the printed circuit board, and electrically connected with the stud. The bus bar is coupled to the spacer.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 20, 2011
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Osamu Nakakita, Yoshimi Okazaki, Hiroyuki Yamazaki
  • Publication number: 20110194572
    Abstract: A composite optical waveguide 1 includes a first optical waveguide 9 comprising a silica-based core and a second optical waveguide 11 comprising an Si-based core. The second optical waveguide 11 is joined to the first optical waveguide 9. The length of the first optical waveguide 9 corresponds to a permissible propagation loss of the second optical waveguide 11. The second optical waveguide 11 includes a sharply curved portion 13 having a radius smaller than the minimum bend radius of the first optical waveguide 9.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 11, 2011
    Inventors: HIROYUKI YAMAZAKI, HIROHITO YAMADA
  • Patent number: 7907806
    Abstract: When a waveguide of second signal light outputted from a first optical coupler intersects a waveguide of first local light outputted from a second optical coupler, a waveguide of a first signal light outputted from the first optical coupler and a waveguide of a second local light outputted from the second optical coupler are each provided with a loss compensation intersecting waveguide that compensates for loss that occurs when the waveguide of the second signal light outputted from the first optical coupler intersects the waveguide of the first local light outputted from the second optical coupler.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: March 15, 2011
    Assignee: NEC Corporation
    Inventor: Hiroyuki Yamazaki
  • Publication number: 20110027478
    Abstract: Provided is a double-side coating apparatus which can uniformly coat both surfaces of a substrate to be processed with a coating solution and form uniform coating films on both the surfaces of the substrate to be processed. A double-side coating apparatus (1) includes a holding mechanism (3a) which holds a substrate (2) to be processed so that the thickness direction of the substrate (2) to be processed is a horizontal direction; a rotational driving mechanism which rotates the substrate (2) to be processed in a circumferential direction; a first coating solution nozzle (18a) which jets a coating solution onto one main surface (2a) of the substrate (2) to be processed; and a second coating solution nozzle which jets the coating solution onto the other main surface (2b) of the substrate (2) to be processed. The first coating solution nozzle (18a) and the second coating solution nozzle are symmetrically arranged with respect to a thickness center surface of the substrate (2) to be processed.
    Type: Application
    Filed: March 30, 2009
    Publication date: February 3, 2011
    Applicant: SHOWA DENKO K.K.
    Inventors: Masato Fukushima, Tsubasa Okada, Hiroyuki Yamazaki, Naoyuki Imai
  • Publication number: 20110019961
    Abstract: When a waveguide of second signal light outputted from a first optical coupler intersects a waveguide of first local light outputted from a second optical coupler, a waveguide of a first signal light outputted from the first optical coupler and a waveguide of a second local light outputted from the second optical coupler are each provided with a loss compensation intersecting waveguide that compensates for loss that occurs when the waveguide of the second signal light outputted from the first optical coupler intersects the waveguide of the first local light outputted from the second optical coupler.
    Type: Application
    Filed: June 14, 2010
    Publication date: January 27, 2011
    Inventor: HIROYUKI YAMAZAKI
  • Publication number: 20110013654
    Abstract: Provided is a wavelength variable laser device wherein an SOA is simplified. The wavelength variable laser device includes: an optical filter formed on a PLC; an SOA that supplies light to the optical filter; a light reflecting section that returns the light transmitted through the optical filter to the SOA via the optical filter; optical waveguides which are formed on the PLC and connect the SOA, the optical filter, and the light reflecting section; a wavelength variable section that changes a wavelength of the light transmitting through the optical filter; and a phase variable section that changes a phase of the light propagated on the optical waveguides.
    Type: Application
    Filed: March 6, 2009
    Publication date: January 20, 2011
    Inventor: Hiroyuki Yamazaki
  • Publication number: 20100329710
    Abstract: An image forming apparatus, which appropriately performs a banding correction even if similar banding does not always occur at a same position of a recording medium, detects reflected light from a test patch image and obtains information on a density change caused by a periodically-uneven rotation of a rotation member, and performs a density correction at an arbitrary position of a print image based on the acquired information on the density change.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 30, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hiroyuki Yamazaki
  • Patent number: 7843986
    Abstract: To prevent the property of an optical filter from being changed even if there is a change in a gap of directional couplers generated due to variations in manufacturing conditions so as to improve the yield. A tunable laser device includes a PLC and an SOA. The PLC includes: optical waveguides; an optical filter; a loop mirror; thin-film heaters; and asymmetrical MZIs. Optical coupling parts within the PLC are formed with the asymmetrical MZIs, so that there is no change generated in the property of the optical filter even if there is a change generated in a gap of the directional couplers due to variations in the manufacturing conditions. Therefore, the yield can be improved.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: November 30, 2010
    Assignee: NEC Corporation
    Inventor: Hiroyuki Yamazaki
  • Patent number: 7833046
    Abstract: An electrical connector to be connected to a flat conductive member includes a housing including an upper wall and a lower wall; a terminal including a contact portion for contacting with the flat conductive member; and an engaging protrusion for engaging the flat conductive member. The housing further includes a receptacle portion between the upper wall and the lower wall for receiving the flat conductive member. The upper wall includes a cut portion. The engaging protrusion is situated under the cut portion, so that an edge portion of the flat conductive member moves over the engaging protrusion and deforms into the cut portion when the flat conductive member is inserted into the receptacle portion.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: November 16, 2010
    Assignee: Hirose Electric Co., Ltd.
    Inventors: Fuminobu Tamura, Hiroyuki Yamazaki
  • Publication number: 20100264114
    Abstract: In a process for microprocessing a synthetic quartz glass substrate by wet etching, an organic coating layer of silane or silazane is formed on the substrate, and a photoresist film is formed on the organic coating layer, prior to the wet etching.
    Type: Application
    Filed: April 15, 2010
    Publication date: October 21, 2010
    Inventors: Hiroyuki Yamazaki, Masaki Takeuchi
  • Patent number: 7817308
    Abstract: The image forming apparatus for forming an image on a recording sheet based on an input image signal includes a halftone processor that applies a halftone process to an input image signal with a predetermined halftone processing period, and an add-on processor that attaches, to the image signal subjected to the halftone process, an add-on signal with an add-on period which is determined according to the halftone process period. The invention enables to suppress an image deterioration and to improve detection accuracy of the add-on signal.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: October 19, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroyuki Yamazaki
  • Publication number: 20100243502
    Abstract: A planographic printing plate packing box that can help solve problems regarding cost reduction and management adaptability to multiple product types, and a planographic printing plate packing structure using the planographic printing plate packing box is to be provided without damaging the coat of the planographic printing plate. It is a is planographic printing plate packing box (30), formed by folding one or more corrugated fiberboards, is a packing box for fitting inside and packing a stacked object (20) of planographic printing plates. Side end portions of corrugated fiberboards are folded, and sides (44T) and (48T) at the tips of end side portions are so arranged as to oppose a side of the stacked object, and the sides of the tips of end side portions and the side of the stacked object are at least as close to parallelism as 30 degrees.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 30, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Hiroyuki Yamazaki, Takayuki Usui
  • Patent number: 7791212
    Abstract: There is provided a hybrid mounted device that includes a element such as semiconductor laser diode (LD), and a board such as a silicon platform having formed thereon an optical waveguide. The LD is mounted to the silicon platform, and is optically coupled to the optical waveguide. The mounting position of the LD is determined by positioning first alignment marks formed on the board and second alignment marks formed on the LD. In this configuration, initial positional deviation amount measuring marks that can measure the initial positional deviation amount of the first alignment marks themselves are formed on the board. The mounting position of the is corrected to a position where the second alignment marks are shifted with respect to the first alignment marks according to the initial positional deviation amount measured from the initial positional deviation amount measuring marks.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: September 7, 2010
    Assignee: NEC Corporation
    Inventors: Morio Takahashi, Hiroyuki Yamazaki, Yukari Deki