Patents by Inventor Shoichi Saitoh

Shoichi Saitoh 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: 20170102618
    Abstract: Provided is a method of forming pattern including (a) forming a chemically amplified resist composition into a film, (b) exposing the film to light, and (c) developing the exposed film with a developer containing a first organic solvent, wherein in the developer, particles each having a diameter of 0.3 ?m or greater amount to a density of 30 particles/ml or less.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 13, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Keita KATO, Sou KAMIMURA, Yuichiro ENOMOTO, Kaoru IWATO, Shohei KATAOKA, Shoichi SAITOH
  • Patent number: 9523913
    Abstract: A pattern forming method comprises (i) a step of forming a film by using an actinic ray-sensitive or radiation-sensitive resin composition containing: (A) a resin containing a repeating unit having a group capable of decomposing by the action of an acid to produce a polar group, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, and (C) a solvent, (ii) a step of exposing the film, and (iii) a step of developing the exposed film by using an organic solvent-containing developer to form a negative pattern, wherein the content of a repeating unit represented by the following formula (I) is less than 20 mol % based on all repeating units in the resin (A) and the resin (A) contains a repeating unit having a non-phenolic aromatic group other than the repeating unit represented by the specific formula.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: December 20, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Keita Kato, Michihiro Shirakawa, Hidenori Takahashi, Shoichi Saitoh, Fumihiro Yoshino
  • Patent number: 9482947
    Abstract: A pattern forming method, includes: (i) a step of forming a film from an actinic ray-sensitive or radiation-sensitive resin composition containing (P) a resin having (a1) a repeating unit capable of decomposing by an action of an acid to produce a carboxyl group, represented by the following formula (I) as defined in the specification and (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation; (ii) a step of exposing the film; and (iii) a step of performing a development by using a developer containing an organic solvent to form a negative pattern.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 1, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Shuhei Yamaguchi, Hidenori Takahashi, Michihiro Shirakawa, Shohei Kataoka, Shoichi Saitoh, Fumihiro Yoshino
  • Publication number: 20160291461
    Abstract: There are provided a pattern forming method in which, in self-organization lithography using a graphoepitaxy method, high miniaturization of patterns can be achieved with high quality and high efficiency by a pattern forming method including (i) a step of forming a block copolymer layer containing a specific first block copolymer or a specific second block copolymer on a specific substrate, (ii) a step of phase-separating the block copolymer layer, and (iii) a step of selectively removing at least one phase of a plurality of phases of the block copolymer layer, an electronic device manufacturing method using the pattern forming method and the electronic device, and a block copolymer used in the pattern forming method and the production method thereof.
    Type: Application
    Filed: June 3, 2016
    Publication date: October 6, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Hayato YOSHIDA, Hiroo TAKIZAWA, Keizo KIMURA, Shoichi SAITOH, Eriko MITANI
  • Patent number: 9316910
    Abstract: Provided is a pattern forming method that is excellent in roughness performance such as line width roughness and exposure latitude, and an actinic-ray-sensitive or radiation-sensitive resin composition and a resist film used for the pattern forming method. The pattern forming method includes (1) forming a film using an actinic-ray-sensitive or radiation-sensitive resin composition containing a resin that includes 65 mol % or more of a repeating unit having a group which generates a polar group by being degraded by the action of an acid based on all repeating units in the resin and at least one kind of repeating unit represented by the following General Formula (I) or (II), (2) exposing the film, and (3) developing the exposed film using a developer that contains an organic solvent.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: April 19, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Shohei Kataoka, Hidenori Takahashi, Shuhei Yamaguchi, Shoichi Saitoh, Michihiro Shirakawa, Fumihiro Yoshino
  • Publication number: 20150253662
    Abstract: According to an exemplary embodiment of the present invention, there is provided an actinic ray-sensitive or radiation-sensitive resin composition includes an aromatic group and a resin (A) that may include (i) a repeating unit having a group capable of decomposing by the action of an acid to generate a polar group and (ii) a repeating unit having a polar group other than a phenolic hydroxyl group, wherein the total content of the repeating units (i) and (ii) is 51 mol % or more based on the entire repeating units in the resin (A).
    Type: Application
    Filed: May 26, 2015
    Publication date: September 10, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Keita KATO, Michihiro SHIRAKAWA, Hidenori TAKAHASHI, Shoichi SAITOH, Fumihiro YOSHINO
  • Patent number: 9120288
    Abstract: The pattern forming method of the invention includes (i) forming a film using an actinic ray-sensitive or radiation-sensitive resin composition containing a resin (P) having a repeating unit (a) represented by the following general formula (I), a compound (B) capable of generating an organic acid upon irradiation with actinic rays or radiation, and a nitrogen-containing organic compound (NA) having a group capable of leaving by the action of an acid, (ii) exposing the film, and (iii) developing the film after the exposure using a developer including an organic solvent to form a negative type pattern, in the general formula (I), R0 represents a hydrogen atom or a methyl group, and each of R1, R2, and R3 independently represents a linear or branched alkyl group.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: September 1, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Hidenori Takahashi, Shuhei Yamaguchi, Shohei Kataoka, Michihiro Shirakawa, Fumihiro Yoshino, Shoichi Saitoh
  • Publication number: 20140299499
    Abstract: The refill lead case includes a case body provided with an opening portion, a lid attachment member attached to the opening portion of the case body, and a lid body attached to the lid attachment member in a slidable manner. The lid body is provided with a slide operation portion located at the front surface side of the lid attachment member and a bridge portion that is integrally molded with the slide operation portion, protrudes toward the rear surface side of the lid attachment member, and extends in the slide direction of the lid body. The bridge portion includes slope surfaces formed at the left and right sides while ridge lines are centered therebetween. When the lid body takes a downward posture, the refill leads accommodated in the case body are distributed inside the case body with respect to the ridge lines as a boundary.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: MITSUBISHI PENCIL COMPANY, LIMITED
    Inventor: Shoichi Saitoh
  • Publication number: 20140234762
    Abstract: A pattern forming method including: a process of forming a film using an actinic ray-sensitive or radiation-sensitive resin composition containing a resin including a Repeating Unit (a1) having a group capable of being decomposed by acid and generating a carboxyl group, and a compound capable of generating acid through irradiation of actinic rays or radiation; a process of exposing the film; and a process of developing the exposed film using a developer including an organic solvent to form a negative tone pattern, wherein the value X obtained by substituting the number of each atom included in the Repeating Unit (a1) after being decomposed by acid and generating a carboxyl group in the following formula is 0<X?5.
    Type: Application
    Filed: May 8, 2014
    Publication date: August 21, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Shuhei YAMAGUCHI, Hidenori TAKAHASHI, Michihiro SHIRAKAWA, Shohei KATAOKA, Shoichi SAITOH, Fumihiro YOSHINO
  • Publication number: 20140127629
    Abstract: Provided is a method of forming pattern including (a) forming a chemically amplified resist composition into a film, (b) exposing the film to light, and (c) developing the exposed film with a developer containing a first organic solvent, wherein in the developer, particles each having a diameter of 0.3 ?m or greater amount to a density of 30 particles/ml or less.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Keita KATO, Sou KAMIMURA, Yuichiro ENOMOTO, Kaoru IWATO, Shohei KATAOKA, Shoichi SAITOH
  • Publication number: 20140087310
    Abstract: A pattern forming method comprises (i) a step of forming a film by using an actinic ray-sensitive or radiation-sensitive resin composition containing: (A) a resin containing a repeating unit having a group capable of decomposing by the action of an acid to produce a polar group, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, and (C) a solvent, (ii) a step of exposing the film, and (iii) a step of developing the exposed film by using an organic solvent-containing developer to form a negative pattern, wherein the content of a repeating unit represented by the following formula (I) is less than 20 mol % based on all repeating units in the resin (A) and the resin (A) contains a repeating unit having a non-phenolic aromatic group other than the repeating unit represented by the specific formula.
    Type: Application
    Filed: December 2, 2013
    Publication date: March 27, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Keita KATO, Michihiro SHIRAKAWA, Hidenori TAKAHASHI, Shoichi SAITOH, Fumihiro YOSHINO
  • Patent number: 8663907
    Abstract: Provided is a method of forming pattern including (a) forming a chemically amplified resist composition into a film, (b) exposing the film to light, and (c) developing the exposed film with a developer containing a first organic solvent, wherein in the developer, particles each having a diameter of 0.3 ?m or greater amount to a density of 30 particles/ml or less.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: March 4, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Keita Kato, Sou Kamimura, Yuichiro Enomoto, Kaoru Iwato, Shohei Kataoka, Shoichi Saitoh
  • Publication number: 20140045117
    Abstract: A pattern forming method, includes: (i) a step of forming a film from an actinic ray-sensitive or radiation-sensitive resin composition containing (P) a resin having (a1) a repeating unit capable of decomposing by an action of an acid to produce a carboxyl group, represented by the following formula (I) as defined in the specification and (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation; (ii) a step of exposing the film; and (iii) a step of performing a development by using a developer containing an organic solvent to form a negative pattern.
    Type: Application
    Filed: September 24, 2013
    Publication date: February 13, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Shuhei YAMAGUCHI, Hidenori TAKAHASHI, Michihiro SHIRAKAWA, Shohei KATAOKA, Shoichi SAITOH, Fumihiro YOSHINO
  • Publication number: 20140011134
    Abstract: A pattern forming method contains (i) a step of forming a film by an actinic ray-sensitive or radiation-sensitive resin composition containing (P) a resin having (a) a repeating unit represented by the specific formula, and (B) a compound capable of generating an organic acid upon irradiation with an actinic ray or radiation; (ii) a step of exposing the film, and (iii) a step of developing the film by using an organic solvent-containing developer to form a negative pattern.
    Type: Application
    Filed: August 28, 2013
    Publication date: January 9, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Hidenori TAKAHASHI, Shuhei YAMAGUCHI, Shohei KATAOKA, Michihiro SHIRAKAWA, Fumihiro YOSHINO, Shoichi SAITOH
  • Publication number: 20130078432
    Abstract: The pattern forming method of the invention includes (i) forming a film using an actinic ray-sensitive or radiation-sensitive resin composition containing a resin (P) having a repeating unit (a) represented by the following general formula (I), a compound (B) capable of generating an organic acid upon irradiation with actinic rays or radiation, and a nitrogen-containing organic compound (NA) having a group capable of leaving by the action of an acid, (ii) exposing the film, and (iii) developing the film after the exposure using a developer including an organic solvent to form a negative type pattern, in the general formula (I), R0 represents a hydrogen atom or a methyl group, and each of R1, R2, and R3 independently represents a linear or branched alkyl group.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 28, 2013
    Applicant: FUJIFILM CORPORATION
    Inventors: Hidenori TAKAHASHI, Shuhei YAMAGUCHI, Shohei KATAOKA, Michihiro SHIRAKAWA, Fumihiro YOSHINO, Shoichi SAITOH
  • Publication number: 20120219913
    Abstract: Provided is a pattern forming method that is excellent in roughness performance such as line width roughness and exposure latitude, and an actinic-ray-sensitive or radiation-sensitive resin composition and a resist film used for the pattern forming method. The pattern forming method includes (1) forming a film using an actinic-ray-sensitive or radiation-sensitive resin composition containing a resin that includes 65 mol % or more of a repeating unit having a group which generates a polar group by being degraded by the action of an acid based on all repeating units in the resin and at least one kind of repeating unit represented by the following General Formula (I) or (II), (2) exposing the film, and (3) developing the exposed film using a developer that contains an organic solvent.
    Type: Application
    Filed: February 27, 2012
    Publication date: August 30, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Shohei KATAOKA, Hidenori TAKAHASHI, Shuhei YAMAGUCHI, Shoichi SAITOH, Michihiro SHIRAKAWA, Fumihiro YOSHINO
  • Publication number: 20120052449
    Abstract: Provided is a method of forming pattern including (a) forming a chemically amplified resist composition into a film, (b) exposing the film to light, and (c) developing the exposed film with a developer containing a first organic solvent, wherein in the developer, particles each having a diameter of 0.3 ?m or greater amount to a density of 30 particles/ml or less.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 1, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Keita KATO, Sou KAMIMURA, Yuichiro ENOMOTO, Kaoru IWATO, Shohei KATAOKA, Shoichi SAITOH
  • Publication number: 20120028196
    Abstract: An embodiment of the method of forming a pattern, comprises (a) forming a chemically amplified resist composition into a film, (b) exposing the film to light, and (c) processing the exposed film with an organic processing liquid, wherein the processing liquid contains an organic solvent whose normal boiling point is 175° C. or higher, the organic solvent being contained in the processing liquid in a content of less than 30 mass %.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 2, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Sou KAMIMURA, Kaoru IWATO, Yuichiro ENOMOTO, Shohei KATAOKA, Keita KATO, Shoichi SAITOH
  • Patent number: D350125
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: August 30, 1994
    Assignee: Sento Krei
    Inventor: Shoichi Saitoh