Patents by Inventor Hiroshi Takanashi

Hiroshi Takanashi 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: 20240077412
    Abstract: According to the embodiment, an optical imaging apparatus includes: an illuminator, a lens, an aperture, and an imaging element. Light is incident into the lens through an inspection object provided where the parallel light from the illuminator reaches. The light has passed through the solvent and the target, and/or through the solvent. The aperture is disposed on a focal plane of the lens. The aperture includes a passage region and a light-blocking region. The passage region allows passage of diffracted light in a direction different from a direction of the parallel light due to the target from the parallel light from the illuminator. The light-blocking region blocks the parallel light having passed through the solvent.
    Type: Application
    Filed: February 27, 2023
    Publication date: March 7, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroya KANO, Hiroshi OHNO, Kenta TAKANASHI
  • Patent number: 9090783
    Abstract: A protective film agent for laser dicing according to the present invention comprises a solution having, dissolved therein, a water-soluble resin and at least one laser light absorber selected from the group consisting of a water-soluble dye, a water-soluble coloring matter, and a water-soluble ultraviolet absorber. The protective film agent is coated on a surface of a wafer, which is to be processed, and is then dried to form a protective film. Laser dicing through the protective film produces chips from the wafer. As a result, deposition of debris can be effectively prevented on the entire face of the chips, including their peripheral edge portions.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: July 28, 2015
    Assignees: TOKYO OHKA KOGYO CO., LTD., DISCO CORPORATION
    Inventors: Hiroshi Takanashi, Atsushi Kawakami, Toshiyuki Yoshikawa, Nobuyasu Kitahara
  • Publication number: 20100304551
    Abstract: A protective film agent for laser dicing according to the present invention comprises a solution having, dissolved therein, a water-soluble resin and at least one laser light absorber selected from the group consisting of a water-soluble dye, a water-soluble coloring matter, and a water-soluble ultraviolet absorber. The protective film agent is coated on a surface of a wafer, which is to be processed, and is then dried to form a protective film. Laser dicing through the protective film produces chips from the wafer. As a result, deposition of debris can be effectively prevented on the entire face of the chips, including their peripheral edge portions.
    Type: Application
    Filed: February 17, 2010
    Publication date: December 2, 2010
    Applicants: TOKYO OHKA KOGYO CO., LTD., DISCO CORPORATION
    Inventors: Hiroshi TAKANASHI, Atsushi KAWAKAMI, Toshiyuki YOSHIKAWA, Nobuyasu KITAHARA
  • Publication number: 20100068480
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula (I): R1—X ??(I) wherein —X represents —OR2, —COOH, —SO3H, —CONHR2, —COR2, —SO2NHR2, —HNCONHR2, or —HNCOOR2; R1 and R2, which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted, saturated or unsaturated hydrocarbon group, provided that it does not contain a radical polymerizable ethylenic double bond, a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or a heterocyclic group; they may have an ether bond in the chain, provided that when —X is —OH, then R1 represents a group other than a hydrogen atom and an aro
    Type: Application
    Filed: November 16, 2009
    Publication date: March 18, 2010
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20100055612
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula: in a range of 3.5 wt % or less based on the weight of the photosensitive resin composition. A photosensitive resin plate using the photosensitive resin composition is also disclosed. By this invention, a negative-working photosensitive resin composition particularly excellent in the reproducibility of the highlight areas and the independent fine lines and having the deep nonprinting depth and good resolving properties, and a photosensitive resin plate using the resin composition are provided.
    Type: Application
    Filed: November 2, 2009
    Publication date: March 4, 2010
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20090075200
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula: in a range of 3.5 wt % or less based on the weight of the photosensitive resin composition. A photosensitive resin plate using the photosensitive resin composition is also disclosed. By this invention, a negative-working photosensitive resin composition particularly excellent in the reproducibility of the highlight areas and the independent fine lines and having the deep nonprinting depth and good resolving properties, and a photosensitive resin plate using the resin composition are provided.
    Type: Application
    Filed: November 3, 2008
    Publication date: March 19, 2009
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20090068413
    Abstract: A negative-working photosensitive resin composition is dis-closed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula (I): R1—X??(I) wherein —X represents —OR2, —COOH, —SO3H, —CONHR2, —COR2, —SO2NHR2, —HNCONHR2, or —HNCOOR2; R1 and R2, which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted, saturated or unsaturated hydrocarbon group, provided that it does not contain a radical polymerizable ethylenic double bond, a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or a heterocyclic group; they may have an ether bond in the chain, provided that when —X is —OH, then R1 represents a group other than a hydrogen atom and an aro
    Type: Application
    Filed: July 5, 2007
    Publication date: March 12, 2009
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20080119581
    Abstract: The present invention provides a process for forming a metal pattern in which a metal is chemically absorbed, and a pattern forming material and a crosslinkable monomer used for the process. The process includes: a step for forming a pattern by photolithography including an exposure step for carrying out exposure with a purified water-based developer having a pH of less than 7 on a pattern forming material containing (A) a matrix polymer having at least one of a carboxyl and a sulfonate group, and a rinsing step; a step for forming a metal-containing pattern by immersing the pattern in an aqueous solution containing a metal compound to allow for chemical absorption of a metal ion or a complex ion to the pattern; and a step for forming a metal pattern containing the elemental metal or further containing metal oxide by sintering the metal-containing pattern. A crosslinkable monomer containing a condensation product of a polyhydric alcohol with N-methylol(meth)acrylamide was used.
    Type: Application
    Filed: December 28, 2005
    Publication date: May 22, 2008
    Applicant: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hiroshi Takanashi, Syozo Miyazawa, Tomoya Kudo
  • Publication number: 20080070160
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula: in a range of 3.5 wt % or less based on the weight of the photo-sensitive resin composition. A photosensitive resin plate using the photosensitive resin composition is also disclosed. By this invention, a negative-working photosensitive resin composition particularly excellent in the reproducibility of the highlight areas and the independent fine lines and having the deep non-printing depth and good resolving properties, and a photosensitive resin plate using the resin composition are provided.
    Type: Application
    Filed: November 5, 2007
    Publication date: March 20, 2008
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20070111141
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula: in a range of 3.5 wt % or less based on the weight of the photosensitive resin composition. A photosensitive resin plate using the photosensitive resin composition is also disclosed. By this invention, a negative-working photosensitive resin composition particularly excellent in the reproducibility of the highlight areas and the independent fine lines and having the deep non-printing depth and good resolving properties, and a photosensitive resin plate using the resin composition are provided.
    Type: Application
    Filed: December 28, 2006
    Publication date: May 17, 2007
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20060275702
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula (I): R1-X ??(I) wherein -X represents —OR2, —COOH, —SO3H, —CONHR2, —COR2, —SO2NHR2, —HNCONHR2, or —HNCOOR2; R1 and R2, which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted, saturated or unsaturated hydrocarbon group, provided that it does not contain a radical polymerizable ethylenic double bond, a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or a heterocyclic group; they may have an ether bond in the chain, provided that when -X is —OH, then R1 represents a group other than a hydrogen atom and an aro
    Type: Application
    Filed: August 15, 2006
    Publication date: December 7, 2006
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20060147838
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula: in a range of 3.5 wt % or less based on the weight of the photosensitive resin composition. A photosensitive resin plate using the photosensitive resin composition is also disclosed. By this invention, a negative-working photosensitive resin composition particularly excellent in the reproducibility of the highlight areas and the independent fine lines and having the deep non-printing depth and good resolving properties, and a photosensitive resin plate using the resin composition are provided.
    Type: Application
    Filed: February 28, 2006
    Publication date: July 6, 2006
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20060105544
    Abstract: A protective film agent for laser dicing according to the present invention comprises a solution having, dissolved therein, a water-soluble resin and at least one laser light absorber selected from the group consisting of a water-soluble dye, a water-soluble coloring matter, and a water-soluble ultraviolet absorber. The protective film agent is coated on a surface of a wafer, which is to be processed, and is then dried to form a protective film. Laser dicing through the protective film produces chips from the wafer. As a result, deposition of debris can be effectively prevented on the entire face of the chips, including their peripheral edge portions.
    Type: Application
    Filed: October 18, 2005
    Publication date: May 18, 2006
    Inventors: Hiroshi Takanashi, Atsushi Kawakami, Toshiyuki Yoshikawa, Nobuyasu Kitahara
  • Publication number: 20060057495
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula (I): R1—X??(I) wherein —X represents —OR2, —COOH, —SO3H, —CONHR2, —COR2, —SO2NHR2, —HNCONHR2, or —HNCOOR2; R1 and R2, which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted, saturated or unsaturated hydrocarbon group, provided that it does not contain a radical polymerizable ethylenic double bond, a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, or a heterocyclic group; they may have an ether bond in the chain, provided that when —X is —OH, then R1represents a group other than a hydrogen atom and an aroma
    Type: Application
    Filed: November 2, 2005
    Publication date: March 16, 2006
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Patent number: 6806032
    Abstract: Disclosed is a negative-type photosensitive resin composition comprising component (A) that is a product of the Michael addition reaction between an amino group-containing compound (a-1) represented by the general formula (I): (wherein n is an integral number of 1-4), and a polyethyleneglycol di(meth)acrylate (a-2) represented by the general formula (II): (wherein R1 is a hydrogen or a methyl, and m is an integral number of 4-14). The composition of the invention is broadly be applicable in the technical fields of photo masks for etching use in the fabrication of CRT shadow masks, and lead frames for the mounting of IC chips; phosphor patterning of CRT; and further those of photosensitive resin plates, dry films, aqueous photosensitive paints, and aqueous photosensitive adhesives, etc.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: October 19, 2004
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hiroshi Takanashi, Tomoya Kudo, Takekazu Obata
  • Publication number: 20030170569
    Abstract: Disclosed is a negative-type photosensitive resin composition comprising component (A) that is a product of the Michael addition reaction between an amino group-containing compound (a-1) represented by the general formula (I): 1
    Type: Application
    Filed: February 4, 2003
    Publication date: September 11, 2003
    Inventors: Hiroshi Takanashi, Tomoya Kudo, Takekazu Obata
  • Publication number: 20010019811
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula (I):
    Type: Application
    Filed: April 20, 2001
    Publication date: September 6, 2001
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Publication number: 20010010893
    Abstract: A negative-working photosensitive resin composition is disclosed, comprising (A) a film-forming polymer, (B) an unsaturated compound having a radical polymerizable ethylenic double bond, (C) a photopolymerization initiator, and (D) a thermal polymerization inhibitor, wherein the resin composition further contains (E) at least one member selected from compounds represented by following formula:
    Type: Application
    Filed: December 20, 2000
    Publication date: August 2, 2001
    Inventors: Hiroshi Takanashi, Tomoya Kudo
  • Patent number: 5739888
    Abstract: A glass substrate having the first through fourth thin films formed thereon and a glass substrate having the fifth through seventh thin films formed thereon are bonded to each other with the thin-film forming surfaces facing each other through a seal member that is located at the surrounding portion of the substrates. Seal-portion spacers, which are to be mixed in the seal member, are made of glass beads with a spherical particle shape, and the rate thereof to the seal material is set to 7 to 20 Wt %. Further, the particle diameter of the spherical-shaped spacers is represented by (the layer thickness A of a liquid crystal layer)+(the total thickness B+B' of various thin films located within the effective display area)-(the total thickness C+C' of various thin films located in a seal portion)+(0.1 to 0.2 .mu.m).
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: April 14, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masami Ogura, Hiroshi Takanashi, Tohru Okuda, Kenji Yasutake
  • Patent number: 5637359
    Abstract: There is provided a plastic liquid crystal display device in which an aligning film processing can be carried out at 150 to 180.degree. C. and which can have optical characteristics comparable to those of the conventional glass substrate liquid crystal display device. The plastic liquid crystal device comprises a pair of plastic substrates, transparent electrodes, insulating films for protecting the electrodes, aligning films and a liquid crystal, wherein the aligning film is an aligning film which is formed by dissolving a high-temperature sintering organic polymer aligning film made of polyimide or a polyimide-like substance in a solvent, printing a resulting solution thereof on a substrate, removing only the solvent by heating and/or heating under reduced pressure, and sintering the substrate at 200.degree. C. or less.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: June 10, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shunsei Fukuchi, Kenji Misono, Kyouhei Isohata, Makoto Iwamoto, Hiroshi Takanashi