Patents by Inventor Masashi Yamamoto

Masashi Yamamoto 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: 20120015440
    Abstract: A spheroid composite includes: a substrate including a cell-adhesive porous base material and plural hydrophilic regions and hydrophobic regions that are disposed on the porous base material and formed by curing a photosensitive composition, wherein the photosensitive composition includes a branched polyalkylene glycol derivative having three or more polyalkylene glycol groups, each having a polymerizable substituent at a terminal thereof, and a tri- or higher-valent linking group that binds to the polyalkylene glycol groups; and spheroids formed in the hydrophobic regions on the substrate, the plural spheroids having a uniform size. A spheroid-containing hydrogel, which includes a hydrogel and two or more spheroids having a uniform size with a diameter of from 70 ?m to 400 ?m that are disposed in the hydrogel in such a manner that the two or more spheroids do not contact each other, can favorably maintain the function of the plural spheroids contained within the hydrogel.
    Type: Application
    Filed: September 8, 2009
    Publication date: January 19, 2012
    Applicant: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORG.
    Inventors: Hidenori Otsuka, Tomomi Satomi, Koji Ueno, Masashi Yamamoto, Yuichi Nakasone, Kyoko Akashi
  • Patent number: 8030665
    Abstract: A substrate 1 for growing nitride semiconductor has a first and second face and has a thermal expansion coefficient that is larger than that of the nitride semiconductor. At least n-type nitride semiconductor layers 3 to 5, an active layer 6 and p-type nitride semiconductor layers 7 to 8 are laminated to form a stack of nitride semiconductor on the first face of the substrate 1. A first bonding layer including more than one metal layer is formed on the p-type nitride semiconductor layer 8. A supporting substrate having a first and second face has a thermal expansion coefficient that is larger than that of the nitride semiconductor and is equal or smaller than that of the substrate 1 for growing nitride semiconductor. A second bonding layer including more than one metal layer is formed on the first face of the supporting substrate. The first bonding layer 9 and the second bonding layer 11 are faced with each other and, then, pressed with heat to bond together.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: October 4, 2011
    Assignee: Nichia Corporation
    Inventors: Shinichi Nagahama, Masahiko Sano, Tomoya Yanamoto, Keiji Sakamoto, Masashi Yamamoto, Daisuke Morita
  • Publication number: 20110200373
    Abstract: An image forming apparatus includes a transfer material transportation device to transport a transfer material; a transfer device to transfer a toner image to the transfer material transported by the transfer material transportation device; a fusing device, disposed after the transfer device, to fuse a toner image on the transfer material transported by the transfer material transportation device; a registration device, disposed before the transfer device, to feed the transfer material, supplied from a sheet feeder, to the transfer device; and a biasing device, disposed for the registration device, to regulate movement of the registration device to decrease a speed difference between a transfer material transport speed generated by the transfer device and a transfer material transport speed generated by the registration device.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 18, 2011
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomohiko Fujii, Tomoya Adachi, Masashi Yamamoto
  • Publication number: 20110172212
    Abstract: Novel amine compounds which are represented by the following formula (1) and efficacious against diseases such as a viral infectious disease with HIV, rheumatism, and cancer metastasis; typically, A1 and A2 represent a hydrogen atom or a substitutable monocyclic or polycyclic heteroaromatic ring and W represents a substitutable benzene ring or any group represented by the following formula (10) or (11): where X represents O, CH2, C(?O), NR11, or CHR35 and D represents a group represented by the following formula (6): [Formula 4] -Q-Y—B??(6) where Q represents a single bond, NR12, or a group represented by the formula (13): and Y represents a group represented by the following formula (7): [Formula 6] —(CR18R19)m3- or —(CR20R21)m4-z-(CR22R23)m5-??(7) where z represents a substitutable monocyclic or polycyclic aromatic ring; and B represents —NR25R26; and R1 to R26 in the above formulae represent a hydrogen atom, an alkyl group, an alkenyl group, or an alkynyl group.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 14, 2011
    Applicant: KUREHA CORPORATION
    Inventors: Atsushi SAITOU, Shigeyuki Kikumoto, Masahiro Ono, Ryo Matsui, Masashi Yamamoto, Tomohiro Sawa, Shigeru Suzuki, Mikiro Yanaka
  • Patent number: 7977512
    Abstract: Disclosed is a benzonitrile derivative which is useful as a production intermediate for benzylamine derivative represented by the general formula (5) below and s secondary amine derivative represented by the general formula (9) below. Also disclosed are a method for producing such a benzonitrile derivative and a use thereof as a bactericide. Specifically disclosed are a novel benzonitrile derivative represented by the general formula (1) below, a salt thereof, a production method thereof, and a use thereof as a pharmaceutical intermediate or a bactericide. [Chemical formula 1] (5) (In the formula, n represents an integer of 0-3, and R1 represents a hydrogen, a linear or branched alkyl group having 1-6 carbon atoms or the like.) [Chemical formula 2] (9) (In the formula, n and R1 are a defined above, and R4 represents a hydrogen, a linear or branched alkl group having 1-6 carbon atoms or the like.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: July 12, 2011
    Assignee: Kureha Corporation
    Inventors: Hideki Iwama, Junko Sudo, Susumu Shimizu, Masataka Katohno, Masashi Yamamoto, Shigeru Suzuki, Hiroshi Hoshino, Nanako Kuruhara
  • Publication number: 20110123873
    Abstract: A quaternary ammonium salt of the formula (1), a composition containing the quaternary ammonium salt and an organic solvent, and an electrochemical device using the salt wherein R1 and R2 are both methyl and X? is BF4? or N(CF3SO2)2?.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 26, 2011
    Inventors: Tetsuo Nishida, Yasutaka Tashiro, Megumi Tomisaki, Masashi Yamamoto, Kazutaka Hirano, Akihiro Nabeshima, Hiroaki Tokuda, Kenji Sato, Takashi Higono
  • Patent number: 7932281
    Abstract: Amine compounds represented by Formula (1) are efficacious against diseases such as a viral infectious disease with HIV, rheumatism, and cancer metastasis:
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: April 26, 2011
    Assignee: Kureha Corporation
    Inventors: Atsushi Saitou, Shigeyuki Kikumoto, Masahiro Ono, Ryo Matsui, Masashi Yamamoto, Tomohiro Sawa, Shigeru Suzuki, Mikiro Yanaka
  • Patent number: 7912363
    Abstract: Face detection is executed only on an image imaged based on an arbitrary (predetermined) focal point information defined in advance. In face detection, the face of a person is detected based on a relative value of statistics in a plurality of characteristic regions produced by contour or parts of the face of the person. Thus, even if the face in the image used for face detection is blurred, the statistics in a certain region can be acquired, and thus such face is detectable. Therefore, the primary subject to be focused can be rapidly detected without performing focal point control at a stage of preliminary imaging in the imaging apparatus.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: March 22, 2011
    Assignee: Omron Corporation
    Inventors: Yoshihisa Minato, Takuya Tsuyuguchi, Fumikazu Imae, Masashi Yamamoto
  • Patent number: 7886563
    Abstract: A washer-dryer apparatus has a blower for sucking air from a water tank and blowing the air into a washing and dewatering tub. At an inlet of the blower is provided a filter, which is cleaned by a cleaning device (300). The cleaning device (300) has a main body (301) pivotable about one end thereof relative to an outer bottom surface of the water tank, a brush (302) provided on the other end of the main body, and a bias spring (303) for biasing the main body toward an opening direction. The main body (301) is subjected to a dynamic pressure of water in the water tank and thereby pivots in an opening direction. When the main body (301) has the pivoting angle of 90°, the brush (302) is in contact with the filter.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: February 15, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masanori Komori, Yoshirou Hisai, Nobutaka Matsunishi, Takahisa Ikegami, Masashi Yamamoto
  • Patent number: 7873474
    Abstract: A mapping block locates the own vehicle and another vehicle on a map DB. Another-vehicle intersection detecting block detects intersections located on a traveling path of another vehicle. An own-vehicle intersection detecting block detects intersections located in front of the own vehicle. A collision-intersection identifying block identifies an intersection that is identical to each other as the possible collision intersection by comparing the intersections detected. An information providing block conducts information provision based on calculations of an arriving time of another vehicle by using a distance to the possible collision intersection and a vehicle speed. Accordingly, the collision possibility with another vehicle can be accurately determined.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: January 18, 2011
    Assignee: Mazda Motor Corporation
    Inventors: Masashi Yamamoto, Youhei Iwashita, Tomokazu Okugi
  • Publication number: 20100318550
    Abstract: An image searching system is characterized by including a display unit capable of displaying a plurality of images arranged two-dimensionally, a range determining unit performing a determination of a search target range from an arrangement area of the plurality of images displayed on the display unit using a selected range set in advance, an image refining unit refining search target images by performing the determination of the search target range by the range determining unit a plurality of times until the selected range becomes a minimum selected range while gradually reducing the selected range, an image selecting unit selecting any of images included in the selected range when the selected range becomes the minimum selected range by performing the refining of the search target images by the image refining unit, and a display control unit causing the display unit to display, while maintaining a state of arrangement, images included in the search target range being determined each time the search target ra
    Type: Application
    Filed: May 19, 2010
    Publication date: December 16, 2010
    Applicant: NIKON CORPORATION
    Inventors: Masashi YAMAMOTO, Taketoshi KUMAZAKI
  • Publication number: 20100289103
    Abstract: Among photodiodes used in an optical system for applying light to the entire chip, the conventional PIN photodiode has a problem that light should be applied only to a light reception surface in order to prevent degradation of light response and that positioning of the optical system is difficult. Moreover, in the mesa type PIN photodiode not requiring positioning of an optical system, disconnection failure is often caused by the mesa step. The present invention is made to solve the aforementioned problems, and its object is to provide a PIN photodiode having an improved light response and causing less disconnection failure of metal wiring and a light reception device using the PIN photodiode. The PIN photodiode of the present invention has a structure that the light reception surface is surrounded by a groove of a predetermined depth.
    Type: Application
    Filed: December 13, 2006
    Publication date: November 18, 2010
    Applicant: ROHM CO., LTD.
    Inventors: Masashi Yamamoto, Jun Ichihara
  • Patent number: 7834197
    Abstract: A quaternary ammonium salt of the formula (1), electrolytic solution and electrochemical device using the salt wherein R1 is straight-chain or branched alkyl having 1 to 4 carbon atoms, R2 is methyl or ethyl, and X? is a fluorine-containing anion.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: November 16, 2010
    Assignees: Otsuka Chemical Co., Ltd., Stella Chemifa Corporation
    Inventors: Tetsuo Nishida, Yasutaka Tashiro, Megumi Tomisaki, Masashi Yamamoto, Kazutaka Hirano, Akihiro Nabeshima, Hiroaki Tokuda, Kenji Sato, Takashi Higono
  • Publication number: 20100243508
    Abstract: The present invention provides an easy-to-produce PTP which exhibits good hermetic sealing performance and which can be readily and reliably opened (without variation) even if the working accuracy is reduced, and also provides its production method. The PTP includes a lid member 3 having a resin film 3a, an aluminum foil 3b, and a thermal adhesive layer 3c, and a container 5 having a flange portion 5b and a large number of pocket portions 5a. The resin film 3a is provided with a plurality of cut pattern units constituting weakening point-cuts 3h arranged in a string 3j. The pitch P1 of the weakening point-cuts 3h along the string is smaller than the pitch of the pocket portions, and at least one of the weakening point-cuts or at least a part of the weakening point-cut falls within a position corresponding to each of the pocket portions.
    Type: Application
    Filed: October 23, 2008
    Publication date: September 30, 2010
    Applicant: TOYO ALUMINIUM KABUSHIKI KAISHA
    Inventors: Tomonobu Sekiguchi, Kazunori Yamada, Masashi Yamamoto
  • Patent number: 7796905
    Abstract: A multicolor image forming apparatus includes: a photosensitive belt unit comprising; a driving roller; a driven roller; a photosensitive belt having a joint, and a charger charging a surface of the photosensitive belt; an exposure device forming an electrostatic latent image, based on image information of each color, on the photosensitive belt; a plurality of developing devices storing different color developers, and an intermediate transfer unit performing a first transfer by sequentially superimposing each color developer image formed on the photosensitive belt. The photosensitive belt is suspended around the driving roller and the driven roller and is rotated and driven by the driving roller. Each developing device contacts and retracts from the photosensitive belt so as to develop the electrostatic latent image into a visible image using each color developer. At least one developing device can retract from the photosensitive belt at a region other than an image region.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: September 14, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Haruyuki Honda, Masahiko Saito, Masanari Fujita, Masashi Yamamoto, Yasuo Takuma
  • Publication number: 20100175432
    Abstract: A washer-dryer apparatus has a blower for sucking air from a water tank and blowing the air into a washing and dewatering tub. At an inlet of the blower is provided a filter, which is cleaned by a cleaning device (300). The cleaning device (300) has a main body (301) pivotable about one end thereof relative to an outer bottom surface of the water tank, a brush (302) provided on the other end of the main body, and a bias spring (303) for biasing the main body toward an opening direction. The main body (301) is subjected to a dynamic pressure of water in the water tank and thereby pivots in an opening direction. When the main body (301) has the pivoting angle of 90°, the brush (302) is in contact with the filter.
    Type: Application
    Filed: June 27, 2007
    Publication date: July 15, 2010
    Inventors: Masanori Komori, Yoshirou Hisai, Nobutaka Matsunishi, Takahisa Ikegami, Masashi Yamamoto
  • Publication number: 20100080356
    Abstract: A charged particle beam decelerating device includes a high-frequency cavity 34 provided on an orbit of a charged particle beam 1, and a phase synchronizing device 40 for synchronizing the charged particle beam 1 in the high-frequency cavity with a phase of a high-frequency electric field 4. By moving the high-frequency cavity 34 or changing an orbit length of the charged particle beam 1, the charged particle beam in the high-frequency cavity is synchronized with a phase of the high-frequency electric field 4.
    Type: Application
    Filed: March 18, 2008
    Publication date: April 1, 2010
    Applicants: IHI CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Daisuke Ishida, Hiroyuki Nose, Namio Kaneko, Yasuo Sakai, Masashi Yamamoto, Mitsuru Uesaka, Katsuhiro Dobashi, Fumito Sakamoto
  • Publication number: 20090180696
    Abstract: Face detection is executed only on an image imaged based on an arbitrary (predetermined) focal point information defined in advance. In face detection, the face of a person is detected based on a relative value of statistics in a plurality of characteristic regions produced by contour or parts of the face of the person. Thus, even if the face in the image used for face detection is blurred, the statistics in a certain region can be acquired, and thus such face is detectable. Therefore, the primary subject to be focused can be rapidly detected without performing focal point control at a stage of preliminary imaging in the imaging apparatus.
    Type: Application
    Filed: March 16, 2009
    Publication date: July 16, 2009
    Inventors: Yoshihisa Minato, Takuya Tsuyuguchi, Fumikazu Imae, Masashi Yamamoto
  • Publication number: 20090155906
    Abstract: The object of the present invention is to provide a differentiation inhibiting agent which allows culture of a stem cell or an embryonic stem cell in an undifferentiated state without use of any feeder cell, a method for culturing using the same, a cell culture liquid using the same, and a cell prepared by culturing using this differentiation inhibiting agent. The present invention provides a differentiation inhibiting agent which comprises a low molecular weight compound, especially a tetrahydroisoquinoline derivative, as an active ingredient; a method for safely culturing a stem cell in large scale in undifferentiated state in the absence of feeder cell which comprises culturing a stem cell by using a tetrahydroisoquinoline derivative; a culture liquid for stem cells comprising a tetrahydroisoquinoline derivative; and a cell which is obtained by culture using a tetrahydroisoquinoline derivative as a differentiation inhibiting agent.
    Type: Application
    Filed: September 18, 2008
    Publication date: June 18, 2009
    Inventors: Tomoyuki Miyabayashi, Masashi Yamamoto
  • Patent number: 7526193
    Abstract: Face detection is executed only on an image imaged based on an arbitrary (predetermined) focal point information defined in advance. In face detection, the face of a person is detected based on a relative value of statistics in a plurality of characteristic regions produced by contour or parts of the face of the person. Thus, even if the face in the image used for face detection is blurred, the statistics in a certain region can be acquired, and thus such face is detectable. Therefore, the primary subject to be focused can be rapidly detected without performing focal point control at a stage of preliminary imaging in the imaging apparatus.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: April 28, 2009
    Assignee: Omron Corporation
    Inventors: Yoshihisa Minato, Takuya Tsuyuguchi, Fumikazu Imae, Masashi Yamamoto