Patents by Inventor Toshiya Sagisaka

Toshiya Sagisaka 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: 11978881
    Abstract: A set of liquid compositions used to form a positive or negative electrode layer is provided. The set of liquid compositions includes a first liquid composition having a first electrode material dissolving or dispersing in a first liquid; and a second liquid composition having a second electrode material dissolving or dispersing in a second liquid, the second electrode material differing from the first electrode material, and the second liquid differing from the first liquid, wherein the second electrode material dissolves or disperses easily in the second liquid than in the first liquid.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: May 7, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Nakajima, Hiromichi Kuriyama, Tomomasa Kajita, Toshiya Sagisaka, Masayoshi Nomura
  • Publication number: 20240021825
    Abstract: A liquid composition for electrodes is capable of forming an isolation layer having an excellent adhesion to the electrode composite material layer when used as an electrode for an electrochemical device. A corresponding electrochemical device has excellent electrochemical device characteristics. The liquid composition for an electrode contains inorganic particles, a resin, and a dispersant. The resin is soluble in a non-polar solvent or in a mixed solvent containing a non-polar solvent, and the resin has an ethylene oxide chain in a main chain.
    Type: Application
    Filed: November 24, 2021
    Publication date: January 18, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Kohji Matsuoka, Hiromitsu Kawase, Yuu Zama, Ryuji Higashi, Okitoshi Kimura, Tomoya Ohmura, Takuya Saiga, Naoki Shiraishi, Toshiya Sagisaka, Daisuke Nose
  • Patent number: 11859131
    Abstract: An electrochromic compound has a structure represented by the following general formula (1): where each of X1 to X3 independently represents a carbon atom or a silicon atom, and each of R1 to R15 independently represents a member selected from a hydrogen atom, a halogen atom, a monovalent organic group, and a polymerizable functional group.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: January 2, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Goto, Masato Shinoda, Toshiya Sagisaka, Yuto Matsuoka, Fuminari Kaneko
  • Patent number: 11749805
    Abstract: The present invention relates to a liquid composition for forming an electrochemical device contains one or both of an active material or an electrolyte; a dispersion medium; and a polymer, wherein the polymer contains constituent units having one or both of an amide bond or an imide bond, and having a group represented by a following general formula (I): wherein X is an oxygen atom, or a carbon atom substituted with a hydrogen atom or an alkyl group, wherein R1, R2, R3, and R4 are each independently hydrogen atoms, substituted or unsubstituted alkyl groups, or substituted or unsubstituted cycloalkyl groups, and m and n are positive integers.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: September 5, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiya Sagisaka, Hiromichi Kuriyama, Satoshi Nakajima, Porraphon Tantitarntong
  • Publication number: 20230272239
    Abstract: A liquid composition contains an inorganic oxide and an organic solvent represented by the following Chemical Formula 1, where R1 and R2 each, independently represent straight chain alkyl groups or straight chain alkoxy groups, wherein the organic solvent has a topological index chai4v of 0.9 or greater.
    Type: Application
    Filed: February 17, 2023
    Publication date: August 31, 2023
    Inventors: Kayato OHYA, Ryuji HIGASHI, Toshiya SAGISAKA, Soh NOGUCHI, Yoshio ITOH, Tomomasa KAJITA, Satoshi NAKAJIMA, Hiromichi KURIYAMA, Shigeo TAKEUCHI
  • Publication number: 20220302454
    Abstract: Provided is a liquid composition containing an active substance, and a dispersion medium having a relative permittivity of 30 or lower at 25 degrees C.
    Type: Application
    Filed: March 12, 2022
    Publication date: September 22, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Satoshi NAKAJIMA, Hiromichi Kuriyama, Tomomasa Kajita, Toshiya Sagisaka, Porraphon Tantitarntong
  • Publication number: 20220290041
    Abstract: An electrochromic compound has a structure represented by the following general formula (1): where each of X1 to X3 independently represents a carbon atom or a silicon atom, and each of R1 to R15 independently represents a member selected from a hydrogen atom, a halogen atom, a monovalent organic group, and a polymerizable functional group.
    Type: Application
    Filed: May 3, 2022
    Publication date: September 15, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Daisuke Goto, Masato Shinoda, Toshiya Sagisaka, Yuto Matsuoka, Fuminari Kaneko
  • Patent number: 11370963
    Abstract: An electrochromic compound having a structure represented by the following general formula (1): where each of X1 to X3 independently represents a carbon atom or a silicon atom, and each of R1 to R15 independently represents a member selected from the group consisting of a hydrogen atom, a halogen atom, a monovalent organic group, and a polymerizable functional group.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: June 28, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Goto, Masato Shinoda, Toshiya Sagisaka, Yuto Matsuoka, Fuminari Kaneko
  • Patent number: 11269229
    Abstract: Provided is an electrochromic display device including a pair of supporting substrates facing each other, a pair of electrodes each disposed on the supporting substrate and facing each other, an electrochromic display layer disposed in contact with at least one of the pair of the electrodes, and an electrolyte layer disposed between the pair of the electrode, wherein the electrochromic display layer includes a plurality of electrochromic layers exhibiting mutually different coloring colors, and the plurality of the electrochromic layers are laminated on the electrode at least in a partial area of the electrode.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: March 8, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yoshinori Okada, Keigo Takauji, Satoshi Yamamoto, Daisuke Goto, Toshiya Sagisaka, Masato Shinoda, Kazuaki Tsuji, Fuminari Kaneko, Tohru Yashiro, Mamiko Inoue, Yuto Matsuoka, Naoki Ura
  • Patent number: 11209713
    Abstract: To provide an electrochromic element, which contains: a first electrode; a second electrode; and an electrolyte provided between the first electrode and the second electrode, wherein the first electrode contains a polymer product obtained through polymerization of an electrochromic composition where the electrochromic composition contains a radical polymerizable compound containing triarylamine.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 28, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Satoshi Yamamoto, Kazukiyo Nagai, Tamotsu Horiuchi, Keiichiroh Yutani, Sukchan Kim, Yoshinori Okada, Hiroyuki Takahashi, Koh Fujimura, Yoshihisa Naijo, Kazuaki Tsuji, Shigenobu Hirano, Toshiya Sagisaka, Daisuke Goto, Keigo Takauji, Mamiko Inoue, Tohru Yashiro
  • Publication number: 20210234171
    Abstract: The present invention relates to a liquid composition for forming an electrochemical device contains one or both of an active material or an electrolyte; a dispersion medium; and a polymer, wherein the polymer contains constituent units having one or both of an amide bond or an imide bond, and having a group represented by a following general formula (I): wherein X is an oxygen atom, or a carbon atom substituted with a hydrogen atom or an alkyl group, wherein R1, R2, R3, and R4 are each independently hydrogen atoms, substituted or unsubstituted alkyl groups, or substituted or unsubstituted cycloalkyl groups, and m and n are positive integers.
    Type: Application
    Filed: January 26, 2021
    Publication date: July 29, 2021
    Inventors: Toshiya SAGISAKA, Hiromichi KURIYAMA, Satoshi NAKAJIMA, Porraphon TANTITARNTONG
  • Patent number: 11053267
    Abstract: To provide an electrochromic compound, represented by the following general formula (I): where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A? and B? are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): where X9, X10, X11, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: July 6, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiya Sagisaka, Hiroyuki Takahashi, Takashi Okada, Shigenobu Hirano, Tohru Yashiro, Koh Fujimura, Yoshihisa Naijo, Yoshinori Okada, Kazuaki Tsuji, Sukchan Kim, Keiichiroh Yutani, Tamotsu Horiuchi, Mamiko Inoue
  • Publication number: 20210198564
    Abstract: An electrochromic compound having a structure represented by the following general formula (1):where each of X1 to X3 independently represents a carbon atom or a silicon atom, and each of R1 to R15 independently represents a member selected from the group consisting of a hydrogen atom, a halogen atom, a monovalent organic group, and a polymerizable functional group.
    Type: Application
    Filed: July 24, 2019
    Publication date: July 1, 2021
    Inventors: Daisuke GOTO, Masato SHINODA, Toshiya SAGISAKA, Yuto MATSUOKA, Fuminari KANEKO
  • Publication number: 20210159480
    Abstract: A set of liquid compositions used to form a positive or negative electrode layer is provided. The set of liquid compositions includes a first liquid composition having a first electrode material dissolving or dispersing in a first liquid; and a second liquid composition having a second electrode material dissolving or dispersing in a second liquid, the second electrode material differing from the first electrode material, and the second liquid differing from the first liquid, wherein the second electrode material dissolves or disperses easily in the second liquid than in the first liquid.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 27, 2021
    Inventors: Satoshi NAKAJIMA, Hiromichi KURIYAMA, Tomomasa KAJITA, Toshiya SAGISAKA, Masayoshi NOMURA
  • Patent number: 10988684
    Abstract: To provide an electrochromic compound represented by the following general formula (1) where X1 and X2 are each independently a carbon atom or a nitrogen atom, R1, R2 and R3 are each independently a halogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted alkoxy group, x is an integer selected from 0 through 3, y and z are each independently an integer selected from 0 through 4, and at least one of L1 and L2 is a monovalent functional group bonded to a nitrogen atom of a pyridinium ring directly, or via a divalent substituent.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: April 27, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Toshiya Sagisaka, Satoshi Yamamoto, Takashi Okada, Masato Shinoda, Shigenobu Hirano, Fuminari Kaneko, Mamiko Inoue, Daisuke Goto, Tohru Yashiro
  • Patent number: 10975296
    Abstract: An electrochromic compound represented by the following formula (1) is provided: where each of R1 to R9 and Ar1 to Ar6 independently represents one of a hydrogen atom, a halogen atom, a monovalent organic group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, a group in which two or more aryl and/or heteroaryl groups are condensed with each other to form a ring, and a polymerizable functional group; and at least one of Ar1 to Ar6 represents an aryl group, a heteroaryl group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, or a group in which at least two aryl or heteroaryl groups are condensed with each other to form a ring.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: April 13, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Daisuke Goto, Toshiya Sagisaka, Satoshi Yamamoto, Masato Shinoda, Mamiko Inoue
  • Patent number: 10935862
    Abstract: Provided is an electrochromic compound represented by the following general formula (I) or (II) where R1 to R13 are each independently a hydrogen atom, a halogen atom, a monovalent organic group, or a polymerizable functional group, and at least one of the R1 to the R13 is a polymerizable functional group.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: March 2, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Yamamoto, Daisuke Goto, Toshiya Sagisaka, Masato Shinoda, Mamiko Inoue, Fuminari Kaneko, Tohru Yashiro
  • Publication number: 20210005876
    Abstract: A composite for forming an electrode contains an active material and macromolecular particles, and can be discharged by an inkjet method. The composite for forming an electrode is excellent in the storage stability and the discharge stability even when the content of the active material is increased.
    Type: Application
    Filed: March 12, 2019
    Publication date: January 7, 2021
    Inventors: Eiko HIBINO, Toru USHIROGOCHI, Toshiya SAGISAKA, Satoshi NAKAJIMA, Hiromichi KURIYAMA, Masahiro MASUZAWA, Keigo TAKAUJI, Miku OHKIMOTO, Hiromitsu KAWASE
  • Publication number: 20200216478
    Abstract: To provide an electrochromic compound, represented by the following general formula (I): where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A? and B? are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): where X9, X10, X11, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Inventors: Toshiya SAGISAKA, Hiroyuki TAKAHASHI, Takashi OKADA, Shigenobu HIRANO, Tohru YASHIRO, Koh FUJIMURA, Yoshihisa NAIJO, Yoshinori OKADA, Kazuaki TSUJI, Sukchan KIM, Keiichiroh YUTANI, Tamotsu HORIUCHI, Mamiko INOUE
  • Patent number: 10642119
    Abstract: An electrochromic compound represented by the following formula (I) is provided: where each of R1 to R8 and R11 to R18 independently represents any one of a hydrogen atom, a halogen atom, a monovalent organic group, the monovalent organic group having a substituent, a polymerizable functional group, and the polymerizable functional group having a substituent; and each of R9, R10, R19, and R20 independently represents any one of a hydrogen atom, an alkyl group, and an aryl group.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: May 5, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Yamamoto, Toshiya Sagisaka, Masato Shinoda, Daisuke Goto