Patents by Inventor Toshio Yamanaka

Toshio Yamanaka 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).

  • Patent number: 7872097
    Abstract: The present invention relates to a new cyclic peptide compound or a salt thereof, which has anti-hepatitis C virus activities based on inhibitory activity against the RNA replication of hepatitis C virus replicon, to a process for preparation thereof comprising a rearrangement reaction under a mild acidic condition and the following amino acid changing reactions etc., to a pharmaceutical composition comprising the same, and to a method for prophylactic and/or therapeutic treatment of hepatitis C in a human being or an animal.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: January 18, 2011
    Assignee: Astellas Pharma Inc.
    Inventors: Masahiro Neya, Seiji Yoshimura, Kazunori Kamijyo, Takuya Makino, Minoru Yasuda, Toshio Yamanaka, Eisaku Tsujii, Yukiko Yamagishi
  • Publication number: 20100286033
    Abstract: The present invention relates to a new cyclic peptide compound or a salt thereof, which has anti-hepatitis C virus activities based on inhibitory activity against the RNA replication of hepatitis C virus replicon, to a process for preparation thereof comprising a rearrangement reaction under a mild acidic condition and the following amino acid changing reactions etc., to a pharmaceutical composition comprising the same, and to a method for prophylactic and/or therapeutic treatment of hepatitis C in a human being or an animal.
    Type: Application
    Filed: July 21, 2010
    Publication date: November 11, 2010
    Inventors: Masahiro NEYA, Seiji Yoshimura, Kazunori Kamijyo, Takuya Makino, Minoru Yasuda, Toshio Yamanaka, Eisaku Tsujii, Yukiko Yamagishi
  • Publication number: 20100218984
    Abstract: The present invention is to provide (i) a photosensitive dry film resist which allows water system development and which is excellent in resolution, flame retardancy, adhesiveness, moisture resistance, electric reliability, and preservation stability, (ii) a method for producing the photosensitive dry film resist, and (iii) usage thereof.
    Type: Application
    Filed: January 23, 2007
    Publication date: September 2, 2010
    Inventors: Toshio Yamanaka, Koji Okada, Kohei Kojima, Hitoshi Nojiri
  • Publication number: 20100120672
    Abstract: The present invention relates to a new cyclic peptide compound or a salt thereof, which has anti-hepatitis C virus activities based on inhibitory activity against the RNA replication of hepatitis C virus replicon, a process for preparation thereof, a pharmaceutical composition comprising the same, and a method for prophylactic and/or therapeutic treatment of hepatitis C in a human being or an animal.
    Type: Application
    Filed: April 25, 2008
    Publication date: May 13, 2010
    Inventors: Toshio Yamanaka, Hidenori Ohki, Junya Ishida, Ayako Toda, Yu Harayama, Takuya Makino, Shigeki Kunikawa, Hiroaki Mizuno, Hiroaki Ohtake
  • Publication number: 20090170755
    Abstract: The present invention relates to a new cyclic peptide compound or a salt thereof, which has anti-hepatitis C virus activities based on inhibitory activity against the RNA replication of hepatitis C virus replicon, to a process for preparation thereof comprising a rearrangement reaction under a mild acidic condition and the following amino acid changing reactions etc., to a pharmaceutical composition comprising the same, and to a method for prophylactic and/or therapeutic treatment of hepatitis C in a human being or an animal.
    Type: Application
    Filed: October 26, 2006
    Publication date: July 2, 2009
    Inventors: Masahiro Neya, Seiji Yoshimura, Kazunori Kamijyo, Takuya Makino, Minoru Yasuda, Toshio Yamanaka, Eisaku Tsujii, Yukiko Yamagishi
  • Patent number: 7548709
    Abstract: A transfer unit includes: an intermediate transfer belt that (i) holds a toner image that has been transferred from a photoreceptor drum and (ii) moves a surface holding the toner image; and a secondary transfer belt that comes into contact with the intermediate transfer belt. The transfer unit (i) transfers the toner image from the intermediate transfer belt to a sheet conveyed to the secondary transfer part and (ii) includes a cleaning unit that removes and collects toner from the surface of the intermediate transfer belt. The transfer unit also includes a power source for sequentially applying, to the secondary transfer belt, (i) a first voltage for generating an electric field that transfers normally-charged toner from the secondary transfer belt to the intermediate transfer belt and (ii) a second voltage for generating an electric field that transfers oppositely-charged toner from the secondary transfer belt to the intermediate transfer belt.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: June 16, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masashi Hirai, Kuniaki Nakano, Masanori Yamada, Takahiko Yoshida, Kazuaki Ishikawa, Hiroshi Tachiki, Toshio Yamanaka
  • 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
  • Patent number: 7409183
    Abstract: In the present applying mechanism, a part of a guide sheet 33 bulges (arches) away from an oil application roller 16, with respect to a vertical line S passing through the center of a pipe 31. In other words, in the present applying mechanism, a part of the guide sheet 33 has a shape of avoiding (bypassing) the oil application roller 16 that has a high temperature. With this, oil flowing on the guide sheet 33 is kept away from the high-temperature oil application roller 16. The present applying mechanism can include an edge 50, or gap, in the guide sheet 33 for backing-up flow of oil to before the application roller in order to ensure even distribution of the oil to the application roller. The present applying mechanism can include a narrow gap between the pipe 31 and guide sheet 33.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: August 5, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshinobu Tateishi, Toshiya Mikita, Yasunori Minakuchi, Masaru Tsuji, Atsushi Ide, Osamu Fujimoto, Kazuhiro Matsuyama, Toshio Yamanaka
  • Patent number: 7306313
    Abstract: A plurality of first base images are formed from a base color output in accordance with a predetermined adjustment value. A plurality of first correction images are formed on the first base images from a correction color to be a subject for correction output in accordance with a predetermined adjustment value. The first correction images are displaced within a predetermined range. The first adjustment value is determined from changed adjustment values. The second base images are formed from the base color output in accordance with the predetermined adjustment value, and the second correction images are formed from the correction color output in accordance with a plurality of adjustment values determined based on the first adjustment value. The second adjustment value having an extreme is determined from a plurality of adjustment value candidates. Finally, the adjustment value for the correction color is corrected to the determined second adjustment value.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: December 11, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Eiji Kamimura, Yoshikazu Harada, Kyosuke Taka, Nobuo Manabe, Toshio Yamanaka, Norio Tomita, Manabu Matsumoto
  • Patent number: 7248272
    Abstract: A plurality of first base images for a base color are formed in accordance with a predetermined adjustment value. A plurality of first correction images for a correction color to be a subject for correction are formed on the first base images in accordance with a predetermined adjustment value. The first correction images are displaced within a predetermined range. The first adjustment value is determined from changed adjustment values. The second base images for the base color are formed in accordance with the predetermined adjustment value while the second correction images for the correction color are formed in accordance with a plurality of adjustment values determined based on the first adjustment value. One second adjustment value having an extreme is determined from the plurality of adjustment value candidates. These processes are repeated to determine a final adjustment value. The adjustment value for the correction color is corrected to the determined final adjustment value.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: July 24, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshikazu Harada, Kyosuke Taka, Norio Tomita, Nobuo Manabe, Toshio Yamanaka
  • Patent number: 7212324
    Abstract: The present invention includes a first plate (14) and a second plate (15) which perform a coarse adjustment of a cylinder mirror (245) by moving the cylinder mirror (245) linearly in the substantially vertical and parallel directions with respect to an appropriate plane surface of a reflective surface (RS) of the cylinder mirror (245), and the second plate (15), a second plate opening section (15b), a setscrew (24), and a hexagon shaft (25) which perform a fine adjustment in the position of the cylinder mirror (245) by moving linearly only in the substantially parallel direction after the coarse adjustment has been completed.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: May 1, 2007
    Assignees: Sharp Kabushiki Kaisha, Fujinon Corporation
    Inventors: Toshio Yamanaka, Ayumu Oda, Norio Tomita, Kyosuke Taka, Hidekazu Sakagami, Mitsuhiro Ohno, Tetsuya Ori
  • Patent number: 7197263
    Abstract: A developer storage device includes a storage container which supplies developer to a developing unit when rotated, and a collecting container for storing developer collected from an image forming section. The developer storage device further includes a first attaching and detaching portion allowing the storage container to be attached to and detached from a developer storage device body, and a second attaching and detaching portion allowing the collecting container to be attached to and detached from the developer storage device body.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: March 27, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideaki Kadowaki, Toshio Yamanaka, Toshiya Mikita
  • 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
  • Patent number: 7189488
    Abstract: A polyimide precursor in accordance with the present invention contains amide acid ester units, either imide units or amide acid units, and fluorine atoms bonded to some of these structural units. A polyimide precursor resin composition in accordance with the present invention contains either such a polyimide precursor or resins separately containing the structural units. Polyimide precursors in accordance with the present invention and resin compositions based on the same therefore have excellent properties and are suitably used in particular to form a particular pattern and for other purposes by impart photosensitivity to them.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: March 13, 2007
    Assignee: Kaneka Corporation
    Inventors: Toshio Yamanaka, Koji Okada, Kaoru Takagahara
  • 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: 7156389
    Abstract: A protecting cover and a pickup device, each having a hooking portion, are rotatably provided at the flank of an image forming apparatus. The rotational centers of the protecting cover and the pickup device and the hooking portions are arranged in such geometry that the hooking portions become engaged with each other only in the range from a predetermined trace intersection to the flank of the image forming apparatus when the protecting cover is rotated from its usage position toward its retracted position at the flank of the image forming apparatus. The pickup device is stopped at the starting position of engagement where the hooking portions are positioned at the trace intersection when sheet feed is not made, and is moved to the operating position when sheet feed is to be made. The protecting cover is constructed so as to rotate in linkage with the rotation of a paper feed tray which is rotatably provided at the flank of the image forming apparatus.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: January 2, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideaki Kadowaki, Tadasu Taniguchi, Mitsuyoshi Terada, Toshio Yamanaka, Osamu Fujimoto
  • Patent number: 7141614
    Abstract: A photosensitive resin composition of the present invention contains a (A) soluble polyimide and a (b) (meth)acrylic compound, the (A) soluble polyimide being soluble in an organic solvent and being synthesized by using an acid dianhydride component and at least one of a diamine component containing a siloxane structure or an aromatic ring structure, and a diamine component having, in its structure, a hydroxyl group a carboxyl group or a carbonyl group, and the (B) (meth)acrylic compound having at least one carbon-carbon double bond, and preferably contains at least one of a (C) photo reaction initiator and a (D) fire retardant. With this arrangement, the photosensitive resin composition of the present invention is capable of having excellent properties. Especially, the photosensitive resin composition of the present invention is so excellently useful that it can be used for electronic parts and the like.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: November 28, 2006
    Assignee: Kaneka Corporation
    Inventors: Koji Okada, Kaoru Takagahara, Toshio Yamanaka
  • Publication number: 20060245782
    Abstract: A transfer unit includes: an intermediate transfer belt that (i) holds a toner image that has been transferred, at a primary transfer part, from a photoreceptor drum and (ii) rotates to move a surface holding the toner image; and a secondary transfer belt that comes into contact, at a secondary transfer part, with the intermediate transfer belt. The transfer unit (i) transfers the toner image from the intermediate transfer belt to a sheet conveyed to the secondary transfer part and (ii) includes an intermediate transfer belt cleaning unit that removes and collects toner from the toner image holding surface of the intermediate transfer belt.
    Type: Application
    Filed: April 26, 2006
    Publication date: November 2, 2006
    Inventors: Masashi Hirai, Kuniaki Nakano, Masanori Yamada, Takahiko Yoshida, Kazuaki Ishikawa, Hiroshi Tachiki, Toshio Yamanaka
  • 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