Patents by Inventor Tatsuya Shimoda

Tatsuya Shimoda 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: 9552985
    Abstract: The invention provides an oxide semiconductor layer that has less cracks and is excellent in electrical property and stability, as well as a semiconductor element and an electronic device each including the oxide semiconductor layer. The invention provides an exemplary method of producing an oxide semiconductor layer, and the method includes the precursor layer forming step of forming, on or above a substrate, a layered oxide semiconductor precursor including a compound of metal to be oxidized into an oxide semiconductor dispersed in a solution including a binder made of aliphatic polycarbonate, and the annealing step of heating the precursor layer at a first temperature achieving decomposition of 90 wt % or more of the binder, and then annealing the precursor layer at a temperature equal to or higher than a second temperature (denoted by X) that is higher than the first temperature, achieves bonding between the metal and oxygen, and has an exothermic peak value in differential thermal analysis (DTA).
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: January 24, 2017
    Assignees: JAPAN ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Satoshi Inoue, Tatsuya Shimoda, Tomoki Kawakita, Nobutaka Fujimoto, Kiyoshi Nishioka
  • Patent number: 9543143
    Abstract: A method for producing an amorphous oxide thin film includes: a pre-treatment process of selectively changing a binding state of an organic component, at a temperature lower than a pyrolysis temperature of the organic component, in a first oxide precursor film containing the organic component and In, to obtain a second oxide precursor film in which, when an infrared wave number range of from 1380 cm?1 to 1520 cm?1 in an infrared absorption spectrum obtained by performing a measurement by Fourier transform infrared spectroscopy is divided into an infrared wave number range of from 1380 cm?1 to 1450 cm?1 and an infrared wave number range of from more than 1450 cm?1 to 1520 cm?1, a peak positioned within the infrared wave number range of from 1380 cm?1 to 1450 cm?1 exhibits the maximum value in the infrared absorption spectrum within an infrared wave number range of from 1350 cm?1 to 1750 cm?1; and a post-treatment process of removing the organic component remaining in the second oxide precursor film, to transfo
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 10, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Kenichi Umeda, Atsushi Tanaka, Masayuki Suzuki, Tatsuya Shimoda
  • Patent number: 9536993
    Abstract: A thin film transistor 100 according to the invention includes a gate electrode 20, a channel 44, and a gate insulating layer 34 provided between the gate electrode 20 and the channel 44 and made of oxide (possibly containing inevitable impurities; this applies to oxide hereinafter) containing lanthanum and zirconium. The channel 44 is made of channel oxide including first oxide containing indium, zinc, and zirconium (Zr) having an atomic ratio of 0.015 or more and 0.075 or less relative to indium assumed to be 1 in atomic ratio, second oxide containing indium and zirconium (Zr) having an atomic ratio of 0.055 or more and 0.16 or less relative to the indium (In) assumed to be 1 in atomic ratio, or third oxide containing indium and lanthanum having an atomic ratio of 0.055 or more and 0.16 or less relative to the indium (In) assumed to be 1 in atomic ratio.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: January 3, 2017
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Tatsuya Shimoda, Satoshi Inoue, Tue Trong Phan, Takaaki Miyasako, Jinwang Li
  • Publication number: 20160315198
    Abstract: It is an object of the invention to provide a thin film transistor and a method for producing the same, which will easily achieve self-aligned formation of a source/drain region without through processes under a vacuum or a low pressure or with no use of expensive equipment. An exemplary method for producing a thin film transistor according to the invention includes an aliphatic polycarbonate layer forming step of forming an aliphatic polycarbonate layer 50 that covers a gate electrode layer 40 disposed above a semiconductor layer 20 with a gate insulator 30 being interposed between the gate electrode layer 40 and the semiconductor layer 20, and also covers the semiconductor layer 20, and has a dopant causing the semiconductor layer 20 to become an n-type or p-type semiconductor layer, and a heating step of heating at a temperature causing introduction of the dopant into the semiconductor layer 20 and decomposition of the aliphatic polycarbonate layer 50.
    Type: Application
    Filed: December 16, 2014
    Publication date: October 27, 2016
    Inventors: Satoshi INOUE, Tatsuya SHIMODA, Nobutaka FUJIMOTO, Kiyoshi NISHIOKA, Shuichi KARASHIMA
  • Publication number: 20160284790
    Abstract: The invention provides a dielectric layer having high relative permittivity with low leakage current and excellent flatness. A dielectric layer 30a according to the invention is made of multilayer oxide including a first oxide layer 31 made of oxide consisting of bismuth (Bi) and niobium (Nb) or oxide consisting of bismuth (Bi), zinc (Zn), and niobium (Nb) (possibly including inevitable impurities) and a second oxide layer 32 made of oxide of one type (possibly including inevitable impurities) selected from the group of oxide consisting of lanthanum (La) and tantalum (Ta), oxide consisting of lanthanum (La) and zirconium (Zr), and oxide consisting of strontium (Sr) and tantalum (Ta).
    Type: Application
    Filed: March 12, 2014
    Publication date: September 29, 2016
    Inventors: Tatsuya SHIMODA, Eisuke TOKUMITSU, Masatoshi ONOUE, Takaaki MIYASAKO
  • Patent number: 9435032
    Abstract: The present invention is directed to a method for forming a patterned conductive film, which comprises the step of bringing a substrate having a layer made of platinum microcrystal particles formed thereon in a pattern and a complex of an amine compound and an aluminum hydride into contact with each other at a temperature of 50 to 120° C. According to the present invention, there is provided a method for forming a patterned conductive layer, which can ensure electrical bonding with a substrate and also can be suitably applied to various electronic devices, simply without requiring a massive and heavy apparatus.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: September 6, 2016
    Assignee: Japan Science and Technology Agency
    Inventors: Tatsuya Shimoda, Yasuo Matsuki, Zhongrong Shen
  • Publication number: 20160181098
    Abstract: The invention provides an oxide semiconductor layer that has less cracks and is excellent in electrical property and stability, as well as a semiconductor element and an electronic device each including the oxide semiconductor layer. The invention provides an exemplary method of producing an oxide semiconductor layer, and the method includes the precursor layer forming step of forming, on or above a substrate, a layered oxide semiconductor precursor including a compound of metal to be oxidized into an oxide semiconductor dispersed in a solution including a binder made of aliphatic polycarbonate, and the annealing step of heating the precursor layer at a first temperature achieving decomposition of 90 wt % or more of the binder, and then annealing the precursor layer at a temperature equal to or higher than a second temperature (denoted by X) that is higher than the first temperature, achieves bonding between the metal and oxygen, and has an exothermic peak value in differential thermal analysis (DTA).
    Type: Application
    Filed: July 4, 2014
    Publication date: June 23, 2016
    Inventors: Satoshi INOUE, Tatsuya SHIMODA, Tomoki KAWAKITA, Nobutaka FUJIMOTO, Kiyoshi NISHIOKA
  • Patent number: 9293325
    Abstract: An object of the present invention is to achieve improvement in performance of a thin film transistor including an oxide as a gate insulating layer, or simplification and energy saving in the processes of producing such a thin film transistor. A thin film transistor (100) of the present invention includes a first oxide layer (possibly containing inevitable impurities) (32) consisting of lanthanum (La) and tantalum (Ta), which has a surface (32a) formed after a precursor layer obtained from a precursor solution as a start material including a precursor containing lanthanum (La) and a precursor containing tantalum (Ta) as solutes is exposed to a hydrochloric acid vapor, between a gate electrode (20) and a channel (52). Moreover, in the thin film transistor, the surface (32a) of the first oxide layer (32) is in contact with the channel (52).
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 22, 2016
    Assignees: JAPAN SCIENCE AND TECHNOLOGY AGENCY, MITSUBISHI MATERIALS CORPORATION, MITSUBISHI MATERIALS ELECTRONIC CHEMICALS CO., LTD.
    Inventors: Tatsuya Shimoda, Hirokazu Tsukada, Takaaki Miyasako
  • Patent number: 9293257
    Abstract: A solid-state electronic device according to the present invention includes: an oxide layer (possibly containing inevitable impurities) that is formed by heating, in an atmosphere containing oxygen, a precursor layer obtained from a precursor solution as a start material including both a precursor containing bismuth (Bi) and a precursor containing niobium (Nb) as solutes, the oxide layer consisting of the bismuth (Bi) and the niobium (Nb); wherein the oxide layer is formed by heating at a heating temperature from 520° C. to 650° C.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: March 22, 2016
    Assignee: Japan Science and Technology Agency
    Inventors: Tatsuya Shimoda, Eisuke Tokumitsu, Masatoshi Onoue, Takaaki Miyasako
  • Patent number: 9257273
    Abstract: A charged particle beam apparatus is provided that enables faster semiconductor film deposition than the conventional deposition that uses silicon hydrides and halides as source gases. The charged particle beam apparatus includes a charged particle source 1, a condenser lens electrode 2, a blanking electrode 3, a scanning electrode 4, a sample stage 10 on which a sample 9 is mounted, a secondary charged particle detector 8 that detects a secondary charged particle 7 generated from the sample 9 in response to the charged particle beam irradiation, a reservoir 14 that accommodates cyclopentasilane as a source gas, and a gas gun 11 that supplies the source gas to the sample 9.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: February 9, 2016
    Assignees: HITACHI HIGH-TECH SCIENCE CORPORATION, JAPAN SCIENCE AND TECHNOLOGY AGENCY, JSR CORPORATION
    Inventors: Yoshihiro Koyama, Anto Yasaka, Tatsuya Shimoda, Yasuo Matsuki, Ryo Kawajiri
  • Publication number: 20160016813
    Abstract: An oxide layer 30 according to the invention consists of bismuth (Bi) and niobium (Nb) (possibly including inevitable impurities). The oxide layer 30 also includes crystal phases of a pyrochlore crystal structure. The obtained oxide layer 30 includes oxide consisting of bismuth (Bi) and niobium (Nb) and has high permittivity that has never been achieved in the conventional technique.
    Type: Application
    Filed: January 6, 2014
    Publication date: January 21, 2016
    Inventors: Tatsuya SHIMODA, Eisuke TOKUMITSU, Masatoshi ONOUE, Takaaki MIYASAKO
  • Patent number: 9202895
    Abstract: A method of producing a functional device according to the present invention includes, in this order: the functional solid material precursor layer formation step of applying a functional liquid material onto a base material to form a precursor layer of a functional solid material; the drying step of heating the precursor layer to a first temperature in a range from 80° C. to 250° C. to preliminarily decrease fluidity of the precursor layer; the imprinting step of imprinting the precursor layer that is heated to a second temperature in a range from 80° C. to 300° C. to form an imprinted structure on the precursor layer; and the functional solid material layer formation step of heat treating the precursor layer at a third temperature higher than the second temperature to transform the precursor layer into a functional solid material layer.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: December 1, 2015
    Assignee: Japan Science and Technology Agency
    Inventors: Tatsuya Shimoda, Eisuke Tokumitsu, Takaaki Miyasako, Toshihiko Kaneda
  • Patent number: 9178022
    Abstract: The present invention provides a precursor composition for forming a conductive oxide film having high conductivity and a stable amorphous structure maintained even after heated at high temperature by a simple liquid phase process. The precursor composition of the present invention contains at least one selected from the group consisting of carboxylates, nitrates and sulfates of lanthanoids (but, except for cerium); at least one selected from the group consisting of carboxylates, nitrosyl carboxylates, nitrosyl nitrates and nitrosyl sulfates of ruthenium, iridium or rhodium; and a solvent containing at least one selected from the group consisting of carboxylic acids, alcohols and ketones.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: November 3, 2015
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Tatsuya Shimoda, Jinwang Li
  • Patent number: 9142703
    Abstract: A photoelectric conversion device includes a plurality of photoelectric conversion regions disposed over a substrate, and a colored region disposed among the photoelectric conversion regions over the substrate, the colored region forming an image over the substrate.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: September 22, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hideki Tanaka, Ichio Yudasaka, Masahiro Furusawa, Tsutomu Miyamoto, Tatsuya Shimoda
  • Patent number: 9123752
    Abstract: A method of producing a functional device according to the present invention includes, in this order: the functional solid material precursor layer formation step of applying a functional liquid material onto a base material to form a precursor layer of a functional solid material; the drying step of heating the precursor layer to a first temperature in a range from 80° C. to 250° C. to preliminarily decrease fluidity of the precursor layer; the imprinting step of imprinting the precursor layer that is heated to a second temperature in a range from 80° C. to 300° C. to form an imprinted structure on the precursor layer; and the functional solid material layer formation step of heat treating the precursor layer at a third temperature higher than the second temperature to transform the precursor layer into a functional solid material layer.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: September 1, 2015
    Assignee: Japan Science and Technology Agency
    Inventors: Tatsuya Shimoda, Eisuke Tokumitsu, Takaaki Miyasako, Toshihiko Kaneda
  • Patent number: 9082618
    Abstract: A method of forming a conductive film, comprising the steps of: applying a composition comprising at least one metal compound selected from the group consisting of carboxylate salt, alkoxide, diketonato and nitrosylcarboxylate salt of a metal selected from among copper, palladium, rhodium, ruthenium, iridium, nickel and bismuth and a solvent to a substrate to form a coating film; and supplying a hydrogen radical to the coating film to carry out a hydrogen radical treatment.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: July 14, 2015
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Tatsuya Shimoda, Jinwang Li
  • Patent number: 9033481
    Abstract: A liquid droplet ejection head includes plural nozzles; plural individual liquid chambers; a common liquid chamber supplying liquid to the plural individual liquid chambers; a filter sheet member including plural pores formed therein to filter the liquid; and a frame body including an opening part and being in connection with the filter sheet member with adhesive. Further, a size of a region where the plural pores are formed is greater than the opening part of the frame body; an adhesive accumulation area is formed on an inner peripheral end of the opening part; and a size of the adhesive accumulation area in a protruding direction of the adhesive is greater than a size of an area between adjacent pores in the filter sheet member.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: May 19, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takashi Kinokuni, Keisuke Hayashi, Tatsuya Shimoda
  • Patent number: 9033456
    Abstract: A liquid-jet head includes a thin film member having a thin part and a thick part, and at least a part of the thin film member is formed of an electroformed film. In the liquid-jet head, the thin film member includes a metallic film forming the thin part, a first electroformed film formed on the metallic film, the first electroformed film forming the thick part, and a second electroformed film covering a connecting part between the metallic film and the first electroformed film.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: May 19, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Shimoda, Kenichiro Hashimoto, Keisuke Hayashi
  • Publication number: 20150102340
    Abstract: A method of forming a conductive film, comprising the steps of: applying a composition comprising at least one metal compound selected from the group consisting of carboxylate salt, alkoxide, diketonato and nitrosylcarboxylate salt of a metal selected from among copper, palladium, rhodium, ruthenium, iridium, nickel and bismuth and a solvent to a substrate to form a coating film; and supplying a hydrogen radical to the coating film to carry out a hydrogen radical treatment.
    Type: Application
    Filed: February 28, 2013
    Publication date: April 16, 2015
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Tatsuya Shimoda, Jinwang Li
  • Publication number: 20150093841
    Abstract: A method of producing a functional device according to the present invention includes, in this order: the functional solid material precursor layer formation step of applying a functional liquid material onto a base material to form a precursor layer of a functional solid material; the drying step of heating the precursor layer to a first temperature in a range from 80° C. to 250° C. to preliminarily decrease fluidity of the precursor layer; the imprinting step of imprinting the precursor layer that is heated to a second temperature in a range from 80° C. to 300° C. to form an imprinted structure on the precursor layer; and the functional solid material layer formation step of heat treating the precursor layer at a third temperature higher than the second temperature to transform the precursor layer into a functional solid material layer.
    Type: Application
    Filed: November 3, 2014
    Publication date: April 2, 2015
    Inventors: Tatsuya SHIMODA, Eisuke TOKUMITSU, Takaaki MIYASAKO, Toshihiko KANEDA