Patents by Inventor Toshinobu Ishihara

Toshinobu Ishihara 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: 7556892
    Abstract: In a halftone phase shift mask blank comprising a substrate, a light absorbing film, and a phase shifter film, the light absorbing film contains a metal element of Group 4A in a distribution having a higher metal element content in an upper region than in a lower region. Also provided is a halftone phase shift mask blank comprising a transparent substrate and a halftone phase shift film of a single layer or multiple layers having a preselected phase difference and transmittance, wherein at least one layer of the halftone phase shift film contains at least 90 atom % of silicon and a plurality of metal elements, typically Mo and Zr or Hf.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: July 7, 2009
    Assignees: Shin-Etsu Chemical Co., Ltd., Toppan Printing Co., Ltd.
    Inventors: Kimihiro Okada, Masahide Iwakata, Takashi Haraguchi, Mikio Takagi, Yuichi Fukushima, Hiroki Yoshikawa, Toshinobu Ishihara, Satoshi Okazaki, Yukio Inazuki, Tadashi Saga
  • Publication number: 20090081595
    Abstract: A pattern is formed through positive/negative reversal by coating a chemically amplified positive resist composition comprising an acid labile group-bearing resin, a photoacid generator, and an organic solvent onto a substrate, prebaking the resist composition, exposing the resist film to high-energy radiation, post-exposure heating, and developing the exposed resist film with an alkaline developer to form a positive pattern; irradiating or heating the positive pattern to facilitate elimination of acid labile groups and crosslinking for improving alkali solubility and imparting solvent resistance; coating a reversal film-forming composition thereon to form a reversal film; and applying an alkaline wet etchant thereto for dissolving away the positive pattern.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 26, 2009
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun HATAKEYAMA, Takao YOSHIHARA, Toshinobu ISHIHARA
  • Publication number: 20090057143
    Abstract: A film-depositing target for use in the manufacture of a halftone phase shift mask blank includes a transparent substrate and a translucent film of one or more layers having a controlled phase and transmittance, at least one layer of the translucent film including silicon, molybdenum and zirconium at the same time as constituent elements, and at least two elements, zirconium and molybdenum in a molar ratio Zr/Mo between 0.05 and 5.
    Type: Application
    Filed: October 28, 2008
    Publication date: March 5, 2009
    Inventors: Hiroki YOSHIKAWA, Toshinobu ISHIHARA, Satoshi OKAZAKI, Yukio INAZUKI, Tadashi SAGA, Kimihiro OKADA, Masahide IWAKATA, Takashi HARAGUCHI, Yuichi FUKUSHIMA
  • Publication number: 20080233309
    Abstract: To provide a method for manufacturing a substrate for making a microarray which will ensure the secure immobilization of a material in a site-selective manner at a low cost.
    Type: Application
    Filed: March 12, 2008
    Publication date: September 25, 2008
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Wataru Kusaki, Takeshi Kinsho, Toshinobu Ishihara
  • Publication number: 20080233292
    Abstract: To provide a method for manufacturing a substrate for microarray which will allow, when a monomolecular film with silicon oxide chains formed on a substrate is used for the immobilization of a target molecule, a chemically amplified type resist film to be directly applied onto the substrate so as to simplify the process and enable fine processing, without causing therewith any problems such as the degradation of resolution and detachment, through more simplified procedures than are possible with the conventional method.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 25, 2008
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Wataru Kusaki, Takeshi Kinsho, Toshinobu Ishihara
  • Publication number: 20080233409
    Abstract: A method for manufacturing a substrate for making a microarray, in which a monomolecular film is not detached when a target molecule is immobilized on the substrate using the monomolecular film having a silicon oxide chain is provided. A method for manufacturing a substrate for making a microarray comprising; at least a step of forming a monomolecular film on the substrate using a silane compound, wherein the monomolecular film is formed using a solution comprising the silane compound and a nitrogen-containing organic base in the step.
    Type: Application
    Filed: February 27, 2008
    Publication date: September 25, 2008
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Wataru Kusaki, Takeshi Kinsho, Toshinobu Ishihara
  • Publication number: 20080233521
    Abstract: A method for manufacturing a substrate for making a microarray wherein a monomolecular film for immobilizing a target molecule can be simply formed position-selectively in manufacture of the substrate for making the microarray is provided. A method for manufacturing a substrate for making a microarray, comprising, a step of forming a resist film on the substrate using a chemically amplified positive resist composition using a copolymer where a content of a monomer unit having a hydroxyl group is 5 mole % or less relative to total monomer units as a binder; a step of patterning the resist film; a step of forming a monomolecular film having a silicon oxide chain on the substrate having the patterned resist film; and subsequently a step of removing the resist film.
    Type: Application
    Filed: February 27, 2008
    Publication date: September 25, 2008
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Wataru Kusaki, Takeshi Kinsho, Toshinobu Ishihara
  • Publication number: 20070099092
    Abstract: A halftone phase shift mask blank has a phase shifter film on a transparent substrate. The phase shifter film is composed of a metal silicide compound containing Mo, at least one metal selected from Ta, Zr, Cr and W, and at least one element selected from O, N and C. The halftone phase shift mask blank has improved processability and high resistance to chemicals, especially to alkaline chemicals.
    Type: Application
    Filed: December 20, 2006
    Publication date: May 3, 2007
    Inventors: Satoshi Okazaki, Toshinobu Ishihara
  • Patent number: 7179545
    Abstract: A halftone phase shift mask blank has a phase shifter film on a transparent substrate. The phase shifter film is composed of a metal silicide compound containing Mo, at least one metal selected from Ta, Zr, Cr and W, and at least one element selected from O, N and C. The halftone phase shift mask blank has improved processability and high resistance to chemicals, especially to alkaline chemicals.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: February 20, 2007
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Satoshi Okazaki, Toshinobu Ishihara
  • Publication number: 20060157466
    Abstract: A control system and method of controlling a battery powered heating device such as a soldering or desoldering tool that includes a control circuit to control the delivery of power to a cartridge heating tip and to cycle the power to the cartridge heating tip during times of no use so as to minimize the amount of power expended to maintain the device in a ready or usable state.
    Type: Application
    Filed: January 14, 2005
    Publication date: July 20, 2006
    Inventors: Mitsuhiko Miyazaki, Toshinobu Ishihara, Hitoshi Takeuchi
  • Patent number: 6994945
    Abstract: Novel silicon-containing polymers are obtained by copolymerizing a vinylsilane monomer with a compound having a low electron density unsaturated bond such as maleic anhydride, maleimide derivatives or tetrafluoroethylene. Using the polymers, chemical amplification positive resist compositions sensitive to high-energy radiation and having a high sensitivity and resolution at a wavelength of less than 300 nm and improved resistance to oxygen plasma etching are obtained.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: February 7, 2006
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takanobu Takeda, Jun Hatakeyama, Toshinobu Ishihara, Tohru Kubota, Yasufumi Kubota
  • Publication number: 20050284502
    Abstract: A rinse comprising a water-soluble polymer is suited for use in a lithographic process. In the lithographic process for the fabrication of semiconductor integrated circuits involving the exposure of resist to various types of radiation (e.g., UV, deep UV, vacuum UV, electron beams, x-rays, and laser beams), the invention can prevent resist insoluble components from generating on and attaching to the resist film or substrate, and if insoluble components attach, can effectively remove the insoluble components, thus avoiding a lowering of production yield by defects resulting from the insoluble components.
    Type: Application
    Filed: June 23, 2005
    Publication date: December 29, 2005
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Satoshi Watanabe, Tomohiro Kobayashi, Yoshio Kawai, Toshinobu Ishihara
  • Publication number: 20050244722
    Abstract: In a halftone phase shift mask blank comprising a substrate, a light absorbing film, and a phase shifter film, the light absorbing film contains a metal element of Group 4A in a distribution having a higher metal element content in an upper region than in a lower region. Also provided is a halftone phase shift mask blank comprising a transparent substrate and a halftone phase shift film of a single layer or multiple layers having a preselected phase difference and transmittance, wherein at least one layer of the halftone phase shift film contains at least 90 atom % of silicon and a plurality of metal elements, typically Mo and Zr or Hf.
    Type: Application
    Filed: March 30, 2005
    Publication date: November 3, 2005
    Applicants: Shin-Etsu Chemical Co., Ltd., Toppan Printing Co., Ltd.
    Inventors: Kimihiro Okada, Masahide Iwakata, Takashi Haraguchi, Mikio Takagi, Yuichi Fukushima, Hiroki Yoshikawa, Toshinobu Ishihara, Satoshi Okazaki, Yukio Inazuki, Tadashi Saga
  • Publication number: 20050217988
    Abstract: For the manufacture of a halftone phase shift mask blank comprising a transparent substrate and a translucent film of one or more layers having a controlled phase and transmittance, at least one layer of the translucent film comprising Si, Mo and Zr at the same time, a target comprising at least Zr and Mo in a molar ratio Zr/Mo between 0.05 and 5 is useful.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 6, 2005
    Applicants: Shin-Etsu Chemical Co., Ltd., Toppan Printing Co., Ltd.
    Inventors: Hiroki Yoshikawa, Toshinobu Ishihara, Satoshi Okazaki, Yukio Inazuki, Tadashi Saga, Kimihiro Okada, Masahide Iwakata, Takashi Haraguchi, Yuichi Fukushima
  • Patent number: 6919161
    Abstract: Silicon-containing polymers comprising recurring units of formula (1) are novel wherein R1 is a single bond or alkylene, R2 is hydrogen or alkyl, R3, R4 and R5 are alkyl, haloalkyl, aryl or silicon-containing group, R6 is hydrogen, methyl, cyano or —C(?O)OR8 wherein R8 is hydrogen, alkyl or acid labile group, R7 is alkyl, —NR9R10 or —OR11 wherein R9, R10 and R11 are hydrogen or alkyl, a and b are positive numbers satisfying 0<a+b?1. Resist compositions comprising the polymers are sensitive to high-energy radiation and have a high sensitivity and resolution at a wavelength of less than 300 nm and improved resistance to oxygen plasma etching.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: July 19, 2005
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Jun Hatakeyama, Takanobu Takeda, Toshinobu Ishihara
  • Patent number: 6902772
    Abstract: Silicon-containing polymers comprising recurring units of three components represented by the general formula (1) are novel wherein R1, R2 and R3 are hydrogen or C1-10 alkyl, R4, R5 and R6 are hydrogen, C1-20 alkyl or haloalkyl, or C6-20 aryl, R7 is C4-20 alkyl, n is 1 to 5, p, q and r are positive numbers.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: June 7, 2005
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takanobu Takeda, Jun Hatakeyama, Toshinobu Ishihara
  • Patent number: 6830866
    Abstract: A resist composition comprising a hydrogenated product of ring-opening metathesis polymer and a poly(meth)acrylic acid derivative as a base resin is sensitive to high-energy radiation, has excellent sensitivity, resolution, and etch resistance, and lends itself to micropatterning with electron beams or deep-UV.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: December 14, 2004
    Assignee: Shi-Etsu Chemical Co., Ltd.
    Inventors: Tomohiro Kobayashi, Tsunehiro Nishi, Satoshi Watanabe, Takeshi Kinsho, Shigehiro Nagura, Toshinobu Ishihara
  • Patent number: 6818148
    Abstract: A resist composition is provided comprising a fluorochemical surfactant which functions to reduce the contact angle of a coating of the resist composition with water or an aqueous base developer as the amount of the fluorochemical surfactant increases. The resist composition forms a coating having a thickness uniformity, free of defects, and wettable with an aqueous base developer when applied onto a substrate, and has a good storage stability in that particles do not increase during storage in solution form.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: November 16, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Satoshi Watanabe, Toyohisa Sakurada, Yoshitaka Yanagi, Shigehiro Nagura, Toshinobu Ishihara
  • Patent number: D530349
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: October 17, 2006
    Assignee: Hakko Corporation
    Inventors: Toshinobu Ishihara, Toshikazu Mochizuki
  • Patent number: D550731
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: September 11, 2007
    Assignee: Hakko Corporation
    Inventors: Toshinobu Ishihara, Tomomi Sugiyama