Patents by Inventor Kenji Itoh

Kenji Itoh 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: 20090149440
    Abstract: The present invention provides an agent which exhibits excellent antibacterial activity, low toxicity, improved bioavailability, and low binding rate to serum proteins. The present invention is directed to a pyridonecarboxylic acid derivative represented by formula (1): or a salt thereof, wherein R1 represents a methyl group, a fluorine atom, or a chlorine atom; R2 represents a hydrogen atom or a lower alkyl group; R3 represents an isopropyl group or a tert-butyl group; R4 represents a methyl group or a halogen atom; and R5 represents a fluorine atom or a chlorine atom. The present invention is also directed to an antibacterial agent and a medicament containing the derivative or the salt thereof as an active ingredient.
    Type: Application
    Filed: November 17, 2005
    Publication date: June 11, 2009
    Applicant: WAKUNAGA PHARMACEUTICAL CO., LTD
    Inventors: Akira Yazaki, Yasuhiro Kuramoto, Kenji Itoh, Kazusa Yoshikai, Yuzo Hirao, Yoshihiro Ohshita, Norihiro Hayashi, Hirotaka Amano, Takayuki Amago, Hitomi Takenaka
  • Patent number: 7518814
    Abstract: Embodiments of the invention provide an inexpensive magnetic head tester employing component parts of a production HDD and capable of exercising functions very close to those of a production HDD. In one embodiment, a magnetic head tester employs the VCM actuator and the control circuit of a production HDD and has a lightweight, simple HGA fixing mechanism mounted on an actuator arm. The HGA fixing mechanism fixes an HGA to the actuator arm by a method using a very light holding spring mounted on the arm, a method of mechanically clamping an HGA by using air pressure, or a method of fixing an HGA to the arm by elastically deforming a rubber clamping member by air pressure. Servo control is achieved by the actuator of a production VCM. An end part of the VCM actuator is stopped by a stopping mechanism and is held by a holding spring to prevent the runaway of the VCM actuator. Servo control is performed by balancing the driving force of the VCM and the resilience of the spring.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: April 14, 2009
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Hiroshi Umezaki, Norifumi Miyamoto, Kazuhiko Washizu, Takehiko Hamaguchi, Kenji Itoh
  • Publication number: 20090091768
    Abstract: Included are an illumination lamp (2) for illuminating a color filter edge (23) at a predetermined angle of incidence, a sensor (3) for taking at least two images by imaging light reflected at a predetermined angle different from the angle of incidence, an image processing section (9) for calculating a difference in luminance within a color filter in accordance with the images thus taken, and a defect determination section (13) for determining the existence of unevenness in the color filter from the difference in luminance. Provided thereby are a color filter inspection method and a color filter inspection apparatus, each for early discovering unevenness through macroscopic observation of the whole color filter by illuminating the color filter edge and by taking reflected light that is not specular reflected light, the unevenness occurring in a drying step, the color filter edge containing a boundary between a pixel and a black matrix.
    Type: Application
    Filed: April 26, 2007
    Publication date: April 9, 2009
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Kenji Itoh
  • Publication number: 20090026009
    Abstract: An exhaust member having two or more exhaust ports separated by a partition wall extending between an inner wall of a tubular portion, wherein said partition wall has the minimum thickness A in a range within ½ of the length of said partition wall from its longitudinal middle point as a center, when viewed in an arbitrary transverse cross section of said tubular portion (including an opening end surface) having said partition wall; wherein said partition wall becomes gradually wider outside said range; and wherein each cuter surface of said partition wall exists in a region sandwiched by (a) an inner line comprising a parallel line H1, H2 separate from the longitudinal centerline of said partition wall by a distance of A/2, and an arc R1, R2 tangentially connected to said parallel line H1, H2 and said inner wall and having a radius r1, r2, wherein both r1 and r2 are ?×A or more, meeting r1+r2=1.
    Type: Application
    Filed: March 22, 2006
    Publication date: January 29, 2009
    Inventor: Kenji Itoh
  • Publication number: 20090012054
    Abstract: The present invention provides a compound of the formula [I]: wherein R1 is lower alkyl, etc. and R2 is hydrogen, etc., or R1 and R2 are bonded together to form lower alkylene; R3 is a group represented by wherein R6 and R7 are independently optionally protected amino, etc.; m and n are independently an integer of 0 to 6; R8 and R9 are independently optionally protected amino, etc., and q and r are independently an integer of 0 to 6, or R8 and R9, together with the adjacent alkylene(s) and the nitrogen atom, form saturated nitrogen-containing heterocycle optionally having substituent(s); R4 is lower alkyl, etc.; and R5 is amino, etc., or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: March 16, 2007
    Publication date: January 8, 2009
    Applicants: ASTELLAS PHARMA INC., WAKUNAGA PHARMACEUTICAL CO. LTD.
    Inventors: Toshio Yamanaka, Ayako Toda, Hidenori Ohki, Shinya Okuda, Kohji Kawabata, Kenji Murano, Kazuo Hatano, Shinobu Takeda, Toru Nakai, Masaru Oogaki, Satoshi Inoue, Keiji Misumi, Kenji Itoh
  • Publication number: 20080315716
    Abstract: A rotor for an automotive alternator includes a rotary shaft, first and second magnetic pole cores each having a plurality of magnetic pole claws, a bobbin, a field coil, a plurality of permanent magnets, and a positioning mechanism. The magnetic pole claws of the first magnetic pole core are interleaved with those of the second magnetic pole core. The field coil is wound around the first and second magnetic pole cores via the bobbin. The permanent magnets are interposed between the first and second magnetic pole cores. The positioning mechanism, which is made up of at least one of the rotary shaft, the first and second magnetic pole cores, and the bobbin, functions to position the first and second magnetic pole cores in the circumferential direction of the rotary shaft with intervals between adjacent pairs of the magnetic pole claws of the first and second magnetic pole cores being even.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 25, 2008
    Applicant: DENSO CORPORATION
    Inventors: Kenji Itoh, Shigenobu Nakamura, Toshiki Hitomi
  • Publication number: 20080304106
    Abstract: An image processing apparatus comprises a transfer processing section, a plurality of image processing sections, and a control section. The transfer processing section is for transferring image data to a memory. The image processing section is for carrying out an image process with respect to image data, and writing, into the memory, the image data that has been subjected to the image process. The control section is for controlling the transfer processing section and the plurality of image processing sections. The control section includes: a selecting section that selects two or more processing sections from among the transfer processing section and the plurality of image processing sections; and an initialization control section that causes the processing sections selected by the selecting section to carry out an initialization process with respect to the memory. This makes it possible to carry out an initialization process with respect to the memory at a high speed, without causing an increase in cost.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 11, 2008
    Inventor: Kenji ITOH
  • Publication number: 20080266600
    Abstract: A print control apparatus includes a command section for causing a printing apparatus to execute a print job, the print job for printing a print subject image on a sheet, with a mark overlaying the sheet. Furthermore, the print control apparatus includes: an accepting section that accepts a processing condition for an image process of the mark, during a processing condition accepting period, which is set for every print job and is the period before an input of an executive instruction; and an image processing section that performs the image process of the mark in accordance with the processing condition during the processing condition accepting period. This makes it possible to prevent delay in initiation of printing, without excessive consumption of storage capacity of a storage device.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 30, 2008
    Inventor: Kenji ITOH
  • Patent number: 7418404
    Abstract: An administrator of a system 10 sells an own company's or another company's commodity to a user via a facsimile, telephone, and electronic mail in order to deal with another company's commodity and support and correspond to diversifying customer purchase needs without suffering from inventory. A user information storage device 14 is provided so as to store an amount of payment for a commodity and support, which is determined by a user and dealer, together with user information. A buying-in information storage device 15 is provided so as to store a buying-in price of the commodity and support from a provider thereof. A reception device 11 is provided so as to receive purchase request information from a user 1. A reception processing device 13 is provided so as to consolidate the purchase request information and perform an order acceptance process in accordance with the purchase request information.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: August 26, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideyuki Mori, Kiyokazu Nakamura, Kenji Itoh
  • Publication number: 20070217941
    Abstract: A high-Cr, high-Ni, heat-resistant, austenitic cast steel comprises as main components C, Si, Mn, Cr. Ni, W and/or Mo, and Nb, the balance being substantially Fe and inevitable impurities, N being 0.01-0.5%, Al being 0.23% or less, and O being 0.07% or less by weight. Exhaust equipment members are produced by using this high-Cr, high-Ni, heat-resistant, austenitic cast steel.
    Type: Application
    Filed: April 19, 2005
    Publication date: September 20, 2007
    Inventors: Keijiro Hayashi, Kenji Itoh, Akinaga Odaira, Koki Otsuka
  • Patent number: 7264850
    Abstract: A process for depositing a diamond-like carbon film, which comprises providing a means for generating a sheet-like beam-type plasma region inside a vacuum vessel for depositing the diamond-like carbon film, and depositing the film on a substrate being moved through said plasma region. Also claimed is an apparatus for fabricating a magnetic recording medium by sequentially and continuously forming a magnetic layer and a diamond-like carbon film on a polymer substrate material, which comprises at least a first vacuum vessel for forming the magnetic layer of the magnetic recording medium and a second vacuum vessel for forming the diamond-like carbon film, provided that the pressure difference between the operation pressures for the first vessel and the second vessel is set in the range of from 10?2 to 10?5 Torr.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: September 4, 2007
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kenji Itoh, Shigenori Hayashi
  • Patent number: 7192943
    Abstract: The present invention relates to a compound of the formula [I]: wherein R1 is lower alkyl or hydroxy(lower)alkyl, and R2 is hydrogen or amino protecting group, or R1 and R2 are bonded together and form lower alkylene; R is -A-R6 wherein A is bond, —NHCO—(CH2CO)n—, lower alkylene, —NH—CO—CO— or the like, and R6 is wherein R7, R8, R9 and R10 are independently amino, guanidino, amidino or the like; R4 is carboxy or protected carboxy; and R5 is amino or protected amino, or a pharmaceutically acceptable salt thereof, a process for preparing a compound of the formula [I], and a pharmaceutical composition comprising a compound of the formula [I] in admixture with a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: March 20, 2007
    Assignees: Astellas Pharma Inc., Wakunaga Pharmaceutical Co., Ltd.
    Inventors: Toshio Yamanaka, Kenji Murano, Ayako Toda, Hidenori Ohki, Masaru Oogaki, Shinya Okuda, Kohji Kawabata, Satoshi Inoue, Keiji Misumi, Kenji Itoh, Kenji Sato
  • Publication number: 20070046286
    Abstract: Embodiments of the invention provide an inexpensive magnetic head tester employing component parts of a production HDD and capable of exercising functions very close to those of a production HDD. In one embodiment, a magnetic head tester employs the VCM actuator and the control circuit of a production HDD and has a lightweight, simple HGA fixing mechanism mounted on an actuator arm. The HGA fixing mechanism fixes an HGA to the actuator arm by a method using a very light holding spring mounted on the arm, a method of mechanically clamping an HGA by using air pressure, or a method of fixing an HGA to the arm by elastically deforming a rubber clamping member by air pressure. Servo control is achieved by the actuator of a production VCM. An end part of the VCM actuator is stopped by a stopping mechanism and is held by a holding spring to prevent the runaway of the VCM actuator. Servo control is performed by balancing the driving force of the VCM and the resilience of the spring.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 1, 2007
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Hiroshi Umezaki, Norifumi Miyamoto, Kazuhiko Washizu, Takehiko Hamaguchi, Kenji Itoh
  • Patent number: 7179801
    Abstract: The present invention relates to a compound of the formula [I]: wherein A is lower alkylene or lower alkenylene; R1 is lower alkyl, hydroxy(lower)alkyl, protected hydroxy(lower)alkyl, amino(lower)alkyl or protected amino(lower)alkyl, and R2 is hydrogen or amino protecting group, or R1 and R2 are bonded together and form lower alkylene; R3 and R5 are independently amino or protected amino; and R4 is carboxy or protected carboxy, or a pharmaceutically acceptable salt thereof, a process for preparing a compound of the formula [I], and a pharmaceutical composition comprising a compound of the formula [I] in admixture with a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: February 20, 2007
    Assignees: Astellas Pharma Inc., Wakunaga Pharmaceutical Co., Ltd.
    Inventors: Hidenori Ohki, Shinya Okuda, Toshio Yamanaka, Hitomi Ogino, legal representative, Tetsuya Ogino, legal representative, Tomomi Takezawa, legal representative, Kohji Kawabata, Satoshi Inoue, Keiji Misumi, Kenji Itoh, Hisashi Akamatsu, Kenji Satoh, Takashi Ogino, deceased
  • Publication number: 20070037786
    Abstract: The present invention relates to a compound of the formula [I]: wherein R1 is lower alkyl, hydroxy(lower)alkyl or halo(lower)alkyl, and R2 is hydrogen or amino protecting group, or R1 and R2 are bonded together and form lower alkylene or lower alkenylene; R3 is hydrogen or lower alkyl; R4 is R5 is carboxy or protected carboxy; and R6 is amino or protected amino, or a pharmaceutically acceptable salt thereof, a process for preparing a compound of the formula [I], and a pharmaceutical composition comprising a compound of the formula [I] in admixture with a pharmaceutically acceptable carrier.
    Type: Application
    Filed: October 24, 2006
    Publication date: February 15, 2007
    Applicants: WAKUNAGA PHARMACEUTICAL CO., LTD., Astellas Pharma Inc.
    Inventors: Hidenori Ohki, Shinya Okuda, Toshio Yamanaka, Masaru Ohgaki, Ayako Toda, Kohji Kawabata, Satoshi Inoue, Keiji Misumi, Kenji Itoh, Kenji Satoh
  • Patent number: 7144629
    Abstract: An abrasion-proof and static-erasing coating is formed on the contact surface of a contact image sensor. The coating comprises a first film having a high hardness and a low conductivity, a second film formed on the first film and having a low hardness and a high conductivity, and a third film having a high hardness and a high resistivity providing an abrasion-proof insulating external surface.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: December 5, 2006
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Kenji Itoh
  • Patent number: 7129232
    Abstract: The present invention relates to a compound of the formula [I]: wherein R1 is lower alkyl, hydroxy(lower)alkyl or halo(lower)alkyl, and R2 is hydrogen or amino protecting group, or R1 and R2 are bonded together and form lower alkylene or lower alkenylene; R3 is hydrogen or lower alkyl; R4 is R5 is carboxy or protected carboxy; and R6 is amino or protected amino, or a pharmaceutically acceptable salt thereof, a process for preparing a compound of the formula [I], and a pharmaceutical composition comprising a compound of the formula [I] in admixture with a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: October 31, 2006
    Assignees: Astellas Pharma Inc., Wakunaga Pharmaceutical Co., Ltd
    Inventors: Hidenori Ohki, Shinya Okuda, Toshio Yamanaka, Masaru Ohgaki, Ayako Toda, Kohji Kawabata, Satoshi Inoue, Keiji Misumi, Kenji Itoh, Kenji Satoh
  • Publication number: 20060191604
    Abstract: A heat-resistant, austenitic spheroidal graphite cast iron has a composition comprising 1-4.5% by weight of Mo, and 0.001-0.5% by weight of Sn and/or Sb as (2Sn+Sb). It preferably has a composition comprising 1-3.5% of C, 1-6.5% of Si, 3% or less of Cr, 10-40% of Ni, 1-4.5% of Mo, 0.001-0.5% of Sn and/or Sb as (2Sn+Sb), and 0.1% or less of a graphite-spheroidizing element, on a weight basis.
    Type: Application
    Filed: July 20, 2004
    Publication date: August 31, 2006
    Inventors: Kenji Itoh, Keijiro Hayashi, Toru Iwanaga
  • Patent number: 7061345
    Abstract: Filter circuitry is provided with a series element and a parallel element. The filter circuitry transmits signals that fall within a certain passband and attenuates signals that don't fall within the certain passband. The series element is comprised of a resonance element having antiresonance characteristics, and the parallel element is comprised of a series circuit including an inductor and a capacitor.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: June 13, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koichiro Misu, Koji Ibata, Kouji Murai, Kenji Yoshida, Kousaku Yamagata, Kenji Itoh, Isao Murase, Masao Koshinaka
  • Patent number: 7054610
    Abstract: In a cellular telephone provided with a receiving circuit of a direct conversion type, a passive low-pass filter is arranged between a mixer for an I-channel and a base band circuit for removing interference waves of or above a channel next to a channel neighboring to the I-channel, and another passive low-pass filter is arranged between a mixer for a Q-channel and the base band circuit for removing interference waves of or above a channel next to a channel neighboring to the Q-channel. Since the low-pass filters for removing the interference waves of or above the channel next to the neighboring channel are of a differential type, the circuit scale can be small, and the power consumption is small. Since the interference waves are removed by the passive low-pass filters and the active low-pass filters, only the desired channel can be reliably received.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: May 30, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenji Itoh, Hiroaki Nagano, Takatoshi Katsura, Shinjirou Fukuyama, Mitsuru Mochizuki, Yoshinori Matsunami, Mitsuhiro Shimozawa, Fumio Ishizu, Ryoji Hayashi