Patents by Inventor Eri Fujita

Eri Fujita 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: 11260436
    Abstract: The substrate processing apparatus includes common piping which guides a processing liquid to a branching portion, supply piping which guides the processing liquid from the branching portion to a chemical liquid nozzle, return piping which guides the processing liquid from the branching portion, and a discharge valve which changes a flow rate of the processing liquid supplied from the common piping to the branching portion. The discharge valve makes a valve element stationary at a plurality of positions including a discharge execution position at which the processing liquid is supplied from the common piping to the branching portion at a flow rate larger than a maximum value of a suction flow rate and a discharge stop position at which the processing liquid is supplied from the common piping to the branching portion at a flow rate smaller than the maximum value of the suction flow rate.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: March 1, 2022
    Inventors: Naoyuki Osada, Takahiro Yamaguchi, Eri Fujita, Akihisa Iwasaki, Ayumi Higuchi, Shota Iwahata
  • Patent number: 11094564
    Abstract: A processing liquid supplying apparatus supplies a processing liquid to a processing unit which processes a substrate.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: August 17, 2021
    Inventors: Shota Iwahata, Ayumi Higuchi, Eri Fujita, Yoshiyuki Fujitani, Masako Mano, Yusuke Takematsu, Yosuke Okuya
  • Patent number: 10816141
    Abstract: A chemical solution feeder feeds a chemical solution to a predetermined feed target, and includes: a feed flow path that is connected at its one end to a supply source of a chemical solution at room temperature and at its other end to a feed target, to guide the chemical solution to the feed target from the supply source; a first filter that removes particles in a chemical solution at room temperature injected from the supply source into the feed flow path; a heating unit that heats the chemical solution having passed through the first filter; and a second filter that removes particles in the chemical solution at high temperature heated by the heating unit, flowing through the feed flow path toward the feed target, wherein the first filter is a hydrophilic filter and the second filter is a hydrophobic filter.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: October 27, 2020
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Ayumi Higuchi, Eri Fujita, Shota Iwahata, Masayuki Otsuji, Yoshiyuki Fujitani
  • Publication number: 20200290101
    Abstract: The substrate processing apparatus includes common piping which guides a processing liquid to a branching portion, supply piping which guides the processing liquid from the branching portion to a chemical liquid nozzle, return piping which guides the processing liquid from the branching portion, and a discharge valve which changes a flow rate of the processing liquid supplied from the common piping to the branching portion. The discharge valve makes a valve element stationary at a plurality of positions including a discharge execution position at which the processing liquid is supplied from the common piping to the branching portion at a flow rate larger than a maximum value of a suction flow rate and a discharge stop position at which the processing liquid is supplied from the common piping to the branching portion at a flow rate smaller than the maximum value of the suction flow rate.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Naoyuki OSADA, Takahiro YAMAGUCHI, Eri FUJITA, Akihisa IWASAKI, Ayumi HIGUCHI, Shota IWAHATA
  • Patent number: 10717117
    Abstract: The substrate processing apparatus includes common piping which guides a processing liquid to a branching portion, supply piping which guides the processing liquid from the branching portion to a chemical liquid nozzle, return piping which guides the processing liquid from the branching portion, and a discharge valve which changes a flow rate of the processing liquid supplied from the common piping to the branching portion. The discharge valve makes a valve element stationary at a plurality of positions including a discharge execution position at which the processing liquid is supplied from the common piping to the branching portion at a flow rate larger than a maximum value of a suction flow rate and a discharge stop position at which the processing liquid is supplied from the common piping to the branching portion at a flow rate smaller than the maximum value of the suction flow rate.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: July 21, 2020
    Assignee: SCREEN Holdings Co., Ltd.
    Inventors: Naoyuki Osada, Takahiro Yamaguchi, Eri Fujita, Akihisa Iwasaki, Ayumi Higuchi, Shota Iwahata
  • Publication number: 20190131144
    Abstract: A processing liquid supplying apparatus supplies a processing liquid to a processing unit which processes a substrate.
    Type: Application
    Filed: October 24, 2018
    Publication date: May 2, 2019
    Inventors: Shota IWAHATA, Ayumi HIGUCHI, Eri FUJITA, Yoshiyuki FUJITANI, Masako MANO, Yusuke TAKEMATSU, Yosuke OKUYA
  • Publication number: 20190056066
    Abstract: A chemical solution feeder feeds a chemical solution to a predeteimined feed target, and includes: a feed flow path that is connected at its one end to a supply source of a chemical solution at room temperature and at its other end to a feed target, to guide the chemical solution to the feed target from the supply source; a first filter that removes particles in a chemical solution at room temperature injected from the supply source into the feed flow path; a heating unit that heats the chemical solution having passed through the first filter; and a second filter that removes particles in the chemical solution at high temperature heated by the heating unit, flowing through the feed flow path toward the feed target, wherein the first filter is a hydrophilic filter and the second filter is a hydrophobic filter.
    Type: Application
    Filed: June 28, 2018
    Publication date: February 21, 2019
    Inventors: Ayumi HIGUCHI, Eri FUJITA, Shota IWAHATA, Masayuki OTSUJI, Yoshiyuki FUJITANI
  • Publication number: 20180236510
    Abstract: The substrate processing apparatus includes common piping which guides a processing liquid to a branching portion, supply piping which guides the processing liquid from the branching portion to a chemical liquid nozzle, return piping which guides the processing liquid from the branching portion, and a discharge valve which changes a flow rate of the processing liquid supplied from the common piping to the branching portion. The discharge valve makes a valve element stationary at a plurality of positions including a discharge execution position at which the processing liquid is supplied from the common piping to the branching portion at a flow rate larger than a maximum value of a suction flow rate and a discharge stop position at which the processing liquid is supplied from the common piping to the branching portion at a flow rate smaller than the maximum value of the suction flow rate.
    Type: Application
    Filed: January 19, 2018
    Publication date: August 23, 2018
    Inventors: Naoyuki OSADA, Takahiro YAMAGUCHI, Eri FUJITA, Akihisa IWASAKI, Ayumi HIGUCHI, Shota IWAHATA
  • Publication number: 20170014873
    Abstract: A substrate processing system is constituted by a cleaning unit, a plurality of processing liquid supply units and a substrate processing apparatus. The cleaning unit supplies a first cleaning liquid to a processing unit of a processing liquid supply unit during cleaning of a pipe. The processing liquid supply unit stores the first cleaning liquid supplied from the cleaning unit in the processing liquid tank, and then supplies the first cleaning liquid in a processing liquid tank to the processing unit of the substrate processing apparatus through the pipe. The cleaning unit prepares a second cleaning liquid concurrently with cleaning of the pipe by the first cleaning liquid, and supplies the prepared second cleaning liquid to the processing liquid tank.
    Type: Application
    Filed: February 26, 2015
    Publication date: January 19, 2017
    Inventors: Ayumi HIGUCHI, Eri FUJITA, Hiroshi YOSHIDA, Masashi NOMURA
  • Publication number: 20130014787
    Abstract: A substrate processing apparatus supplies a resist stripping solution, formed by mixing sulfuric acid and a hydrogen peroxide solution, to a surface of a substrate. The substrate processing apparatus includes a nozzle that discharges the resist stripping solution toward the substrate, a hydrogen peroxide solution supply passage through which the hydrogen peroxide solution flows toward the nozzle, a plurality of sulfuric acid supply passages respectively connected to a plurality of mixing positions along the hydrogen peroxide solution supply passage that differ in flow passage length to the nozzle, and a sulfuric acid supply passage selecting unit that introduces the sulfuric acid from a sulfuric acid supply source to a sulfuric acid supply passage selected from among the plurality of sulfuric acid supply passages.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 17, 2013
    Inventors: Shingo URATA, Akihiko TAKI, Hiroki TSUJIKAWA, Eri FUJITA, Yoshiyuki FUJITANI
  • Patent number: 6512245
    Abstract: A static random access memory comprising memory cells each composed of transfer MISFETs controlled by word lines and of a flip-flop circuit made of driver MISFETs and load MISFETs. The top of the load MISFETs is covered with supply voltage lines so that capacitor elements of a stacked structure are formed between the gate electrodes of the load MISFETs and the supply voltage lines.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: January 28, 2003
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Shuji Ikeda, Satoshi Meguro, Kyoichiro Asayama, Eri Fujita, Koichiro Ishibashi, Toshiro Aoto, Sadayuki Morita, Atsuyoshi Koike, Masayuki Kojima, Yasuo Kiguchi, Kazuyuki Suko, Fumiyuki Kanai, Naotaka Hashimoto, Toshiaki Yamanaka
  • Patent number: 6307217
    Abstract: A static random access memory comprising memory cells each composed of transfer MISFETs controlled by word lines and of a flip-flop circuit made of driver MISFETs and load MISFETs. The top of the load MISFETs is covered with supply voltage lines so that capacitor elements of a stacked structure are formed between the gate electrodes of the load MISFETs and the supply voltage lines.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: October 23, 2001
    Assignees: Hitachi, Ltd., Hitachi ULSI Engineering Corp.
    Inventors: Shuji Ikeda, Satoshi Meguro, Kyoichiro Asayama, Eri Fujita, Koichiro Ishibashi, Toshiro Aoto, Sadayuki Morita, Atsuyoshi Koike, Masayuki Kojima, Yasuo Kiguchi, Kazuyuki Suko, Fumiyuki Kanai, Naotaka Hashimoto, Toshiaki Yamanaka
  • Publication number: 20010023965
    Abstract: A static random access memory comprising memory cells each composed of transfer MISFETs controlled by word lines and of a flip-flop circuit made of driver MISFETs and load MISFETs. The top of the load MISFETs is covered with supply voltage lines so that capacitor elements of a stacked structure are formed between the gate electrodes of the load MISFETs and the supply voltage lines.
    Type: Application
    Filed: May 17, 2001
    Publication date: September 27, 2001
    Inventors: Shuji Ikeda, Satoshi Meguro, Kyoichiro Asayama, Eri Fujita, Koichiro Ishibashi, Toshiro Aoto, Sadayuki Morita, Atsuyoshi Koike, Masayuki Kojima, Yasuo Kiguchi, Kazuyuki Suko, Fumiyuki Kanai, Naotaka Hashimoto, Toshiaki Yamanaka