Patents by Inventor Sachiko Kawakami

Sachiko Kawakami 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: 20240341171
    Abstract: A novel light-receiving device that is highly convenient, useful, or reliable is provided. A light-receiving device including a light-receiving layer (203) between a pair of electrodes (201, 202) is provided. The light-receiving layer 203 includes an active layer. The active layer includes a first organic compound. An SP value of the first organic compound is greater than or equal to 9.0 [(cal/cm3)1/2] and less than or equal to 11.0 [(cal/cm3)1/2]. Alternatively, a light-receiving device including a light-receiving layer (203) between a pair of electrodes (201, 202) is provided. The light-receiving layer (203) includes an active layer. The active layer includes a first organic compound. An absolute value of a difference in an SP value between the first organic compound and an oxygen-containing solvent except for alcohol is less than or equal to 1.0 [(cal/cm3)1/2].
    Type: Application
    Filed: August 8, 2022
    Publication date: October 10, 2024
    Inventors: Ryo NARUKAWA, Hideko YOSHIZUMI, Anna TADA, Kazuki KAJIYAMA, Sachiko KAWAKAMI
  • Publication number: 20240336585
    Abstract: An organic compound represented by General Formula (G1) is provided. Ar1 represents an aryl group having 6 to 30 carbon atoms or a heteroaryl group having 2 to 30 carbon atoms; Ar2 is a group represented by General Formula (G1-1); R1 to R17 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a cycloalkyl group having 3 to 10 carbon atoms; and n represents an integer of 0 to 3.
    Type: Application
    Filed: March 21, 2024
    Publication date: October 10, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko KAWAKAMI, Kazuki Kajiyama
  • Patent number: 12110274
    Abstract: To provide a light-emitting element having high luminous efficiency and to provide a light-emitting device and an electronic device which consumes low power and is driven at low voltage, a carbazole derivative represented by the general formula (1) is provided. In the formula, ?1, ?2, ?3, and ?4 each represent an arylene group having less than or equal to 13 carbon atoms; Ar1 and Ar2 each represent an aryl group having less than or equal to 13 carbon atoms; R1 represents any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; and R2 represents any of an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, l, n, and n are each independently 0 or 1.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: October 8, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroko Nomura, Harue Osaka, Takahiro Ushikubo, Sachiko Kawakami, Satoshi Seo, Satoko Shitagaki
  • Publication number: 20240334747
    Abstract: A display apparatus-including a first pixel, a second pixel adjacent to the first pixel, a first insulating layer, and a second insulating layer over the first insulating layer is provided. The first pixel includes a first pixel electrode, a first EL layer covering the first pixel electrode, a third insulating layer over the first EL layer, and a common electrode over the first EL layer. The common electrode is in contact with part of the top surface of the first EL layer. The first EL layer contains a first organic compound. The amount of an organic compound that includes an oxide of the first organic compound or a partial structure of the first organic compound and is contained in the first EL layer is greater than 0 and less than or equal to 1/10 of an amount of the first organic compound contained in the first EL layer.
    Type: Application
    Filed: July 15, 2022
    Publication date: October 3, 2024
    Inventors: Hayato YAMAWAKI, Sachiko KAWAKAMI, Eriko AOYAMA, Miki KURIHARA, Yoshinobu ASAMI, Takahiro FUJIE, Ryo TAGASHIRA
  • Publication number: 20240324309
    Abstract: A display apparatus with high display quality is provided. A display apparatus includes a first pixel, a second pixel provided adjacent to the first pixel, a first insulating layer, and a second insulating layer over the first insulating layer. The first pixel includes a first pixel electrode, a first EL layer covering the first pixel electrode, a common electrode over the first EL layer. The second pixel includes a second pixel electrode, a second EL layer covering the second pixel electrode, and the common electrode over the second EL layer. The first insulating layer covers part of a side surface and part of a top surface of the first EL layer and part of a side surface and part of a top surface of the second EL layer. At least part of the second insulating layer is provided to be sandwiched between an end portion of the side surface of the first EL layer and an end portion of the side surface of the second EL layer.
    Type: Application
    Filed: July 11, 2022
    Publication date: September 26, 2024
    Inventors: Yoshinobu ASAMI, Takahiro FUJIE, Ryo TAGASHIRA, Sachiko KAWAKAMI, Yui YOSHIYASU, Tomohiro KUBOTA
  • Publication number: 20240315066
    Abstract: A light-emitting device having high heat resistance in a manufacturing process is provided.
    Type: Application
    Filed: January 28, 2022
    Publication date: September 19, 2024
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yui YOSHIYASU, Naoaki HASHIMOTO, Tatsuyoshi TAKAHASHI, Sachiko KAWAKAMI, Satoshi SEO
  • Publication number: 20240306493
    Abstract: An object of one embodiment of the present invention is to provide a novel organic compound. The organic compound is a triarylamine derivative. The triarylamine derivative has an aryl group including a skeleton in which a naphthyl group is bonded to a naphthylene group. The other two aryl groups are each independently a phenyl group, a biphenyl group, or a terphenyl group. These groups may each have a substituent. As the substituent, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms can be selected.
    Type: Application
    Filed: May 13, 2024
    Publication date: September 12, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko KAWAKAMI, Anna TADA, Yusuke TAKITA, Tsunenori SUZUKI, Naoaki HASHIMOTO, Satoshi SEO
  • Patent number: 12089491
    Abstract: A novel light-emitting element is provided. A light-emitting element with a long lifetime is provided. A light-emitting element with high emission efficiency is provided. A novel organic compound is provided. A novel organic compound having a hole-transport property is provided. A novel hole-transport material is provided. A hole-transport material including an organic compound having a substituted or unsubstituted benzonaphthofuran skeleton and a substituted or unsubstituted amine skeleton is provided. A light-emitting element using the hole-transport material is provided. An organic compound in which an amine skeleton including two aromatic hydrocarbon groups having 6 to 60 carbon atoms is bonded to the 6- or 8-position of the benzonaphthofuran skeleton is provided.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: September 10, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Tsunenori Suzuki, Yusuke Takita, Satoshi Seo
  • Patent number: 12089490
    Abstract: A novel organic compound is provided. A novel organic compound having a hole-transport property is provided. A novel hole-transport material is provided. A novel light-emitting element is provided. Alight-emitting element with a favorable lifetime is provided. A light-emitting element with favorable emission efficiency is provided. An organic compound having a substituted or unsubstituted benzonaphthofuran skeleton, a substituted or unsubstituted carbazole skeleton, and a substituted or unsubstituted amine skeleton is provided. Alternatively, a light-emitting element that uses the hole-transport material is provided.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: September 10, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Rina Shimazaki, Takumu Okuyama, Tsunenori Suzuki, Satoshi Seo
  • Publication number: 20240292701
    Abstract: A display device with high display quality is provided. The display device includes a first subpixel including a first light-emitting device and a first coloring layer transmitting blue light in a display portion. The first light-emitting device includes a first pixel electrode, a first EL layer, and a common electrode. The first EL layer includes a first light-emitting material emitting blue light and a second light-emitting material emitting light with a longer wavelength than blue light. The first EL layer includes a first light-emitting unit over the first pixel electrode, a charge-generation layer over the first light-emitting unit, and a second light-emitting unit over the charge-generation layer.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 29, 2024
    Inventors: Takayuki IKEDA, Satoshi SEO, Sachiko KAWAKAMI, Daiki NAKAMURA, Shunpei YAMAZAKI
  • Publication number: 20240284792
    Abstract: An organic compound with an electron-injection property and low water solubility is provided. An organic compound represented by General Formula (G1) is provided. In General Formula (G1), Ar is an aromatic skeleton represented by General Formula (Ar-1); L represents an alkylene group or an arylene group; n represents an integer of 0 to 3; m represents an integer of 1 to 4; and each of R1 to R12 independently represents hydrogen or an alkyl group. In General Formula (Ar-1), each of rings A, B, C, and D independently represents a benzene ring, a naphthalene ring, or a phenanthrene ring; any m carbon atoms on the rings A, B, C, and D each include a bond in General Formula (G1); X1 represents C, Si, or Ge; and ai represents a single bond, O, S, C including a substituent, Si including a substituent, or Ge including a substituent.
    Type: Application
    Filed: January 29, 2024
    Publication date: August 22, 2024
    Inventors: Yuko KUBOTA, Takeyoshi WATABE, Hiromi SEO, Nobuharu OHSAWA, Yui YOSHIYASU, Sachiko KAWAKAMI
  • Publication number: 20240276833
    Abstract: A display device with a high level of immersion or realistic sensation is provided. The display device includes a display portion capable of full-color display, a communication portion having a wireless communication function, and a wearing portion having a function of being worn on a head. The display portion includes a subpixel including a light-emitting device and a coloring layer transmitting blue light. The light-emitting device contains a first light-emitting material emitting blue light and a second light-emitting material emitting light having a longer wavelength than blue light. The light-emitting device includes a first light-emitting unit, a charge-generation layer, and a second light-emitting unit that are stacked in this order.
    Type: Application
    Filed: May 25, 2022
    Publication date: August 15, 2024
    Inventors: Shunpei YAMAZAKI, Takayuki IKEDA, Satoshi SEO, Sachiko KAWAKAMI, Daiki NAKAMURA
  • Patent number: 12063856
    Abstract: A novel mixed material for a light-emitting device with improved heat resistance is provided. The mixed material for a light-emitting device includes a first heteroaromatic compound and a second heteroaromatic compound. The first heteroaromatic compound includes a first heteroaromatic ring. The first heteroaromatic ring includes a ring including two or more nitrogen atoms and any one of a benzene ring and a pyridine ring or a ring including a diazine ring or a triazine ring. The second heteroaromatic compound includes a second heteroaromatic ring. The second heteroaromatic ring includes a ring including two or more nitrogen atoms and any one of a benzene ring and a pyridine ring or a ring including a diazine ring or a triazine ring. A structure of the first heteroaromatic ring is different from a structure of the second heteroaromatic ring.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: August 13, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yui Yoshiyasu, Naoaki Hashimoto, Tatsuyoshi Takahashi, Sachiko Kawakami, Satoshi Seo
  • Publication number: 20240260373
    Abstract: A high-resolution display apparatus having a light detection function is provided. The display apparatus includes a display portion in which a first arrangement pattern and a second arrangement pattern are repeatedly placed in a first direction. In the first arrangement pattern, a first subpixel and a second subpixel are repeatedly arranged in a second direction. In the second arrangement pattern, a third subpixel, a fourth subpixel, and a fifth subpixel are repeatedly arranged in the second direction. Each of the first subpixel to the fourth subpixel includes a light-emitting device. The fifth subpixel includes a light-receiving device. Three or all of light-emitting devices included in the four subpixels can include EL layers with the same structure.
    Type: Application
    Filed: June 17, 2022
    Publication date: August 1, 2024
    Inventors: Yoshiyuki KUROKAWA, Sachiko KAWAKAMI, Nobuharu OHSAWA, Daisuke KUBOTA
  • Publication number: 20240260454
    Abstract: A light-receiving device with a novel structure is provided. The provided light-receiving device includes a light-receiving layer between a pair of electrodes. The light-receiving layer includes an active layer. The active layer contains a first organic compound and a second organic compound. An absorption spectrum of the first organic compound has one or more peaks. At least one peak wavelength of the peaks is greater than or equal to 400 nm and less than or equal to 700 nm. The HOMO level of the second organic compound is higher than the HOMO level of the first organic compound. The difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is preferably higher than or equal to 0.2 eV and lower than or equal to 1.5 eV and further preferably higher than or equal to 0.4 eV and lower than or equal to 1.5 eV.
    Type: Application
    Filed: June 9, 2022
    Publication date: August 1, 2024
    Inventors: Yasuhiro NIIKURA, Daisuke KUBOTA, Taisuke KAMADA, Sachiko KAWAKAMI, Anna TADA, Satoshi SEO
  • Patent number: 12043618
    Abstract: An organic compound has a benzonaphthofuran skeleton and is represented by General Formula (G1). In General Formula (G1), A represents a pyrene skeleton. In the case where the pyrene skeleton has a substituent, the substituent is a diarylamino group including two substituted or unsubstituted aryl groups each having 6 to 13 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, an alkyl group having 1 to 7 carbon atoms, a substituted or unsubstituted monocyclic saturated hydrocarbon group having 3 to 20 carbon atoms, or a substituted or unsubstituted polycyclic saturated hydrocarbon group having 7 to 10 carbon atoms. The two aryl groups of the diarylamino group may be the same or different.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: July 23, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takuya Haruyama, Sachiko Kawakami, Naoaki Hashimoto, Yusuke Takita, Tsunenori Suzuki, Satoshi Seo
  • Publication number: 20240237526
    Abstract: An electron-injection organic compound with low solubility in water is provided. An organic compound represented by General Formula (G1) is provided. X represents a group represented by General Formula (X-1) and Y represents a group represented by General Formula (Y-1). Ar represents a heteroaromatic hydrocarbon group having 2 to 30 carbon atoms forming a ring or an aromatic hydrocarbon group having 6 to 30 carbon atoms forming a ring. Each of R1 and R2 independently represents hydrogen or an alkyl group having 1 to 6 carbon atoms, and h represents an integer of 1 to 6. In General Formulae (X-1) and (Y-1), each of R3 to R6 independently represents hydrogen or an alkyl group having 1 to 6 carbon atoms, and m represents an integer of 0 to 4. When m is 0, 1, 3, or 4, n represents an integer of 1 to 5. When m is 2, n represents 1, 2, 4, or 5.
    Type: Application
    Filed: December 14, 2023
    Publication date: July 11, 2024
    Inventors: Masatoshi TAKABATAKE, Sachiko KAWAKAMI, Nobuharu OHSAWA, Yui YOSHIYASU, Takeyoshi WATABE
  • Publication number: 20240206207
    Abstract: An organic compound is represented by General Formula (G1) below. In General Formula (G1), X represents a sulfur atom or an oxygen atom, Ar2 represents a group represented by General Formula (G1-1) below, and Ar1 represents an aryl group having 6 to 30 carbon atoms or a heteroaryl group having 2 to 30 carbon atoms. At least one of R1 to R16 and R21 to R29 represents any of halogen, a nitrile group, an alkenyl group, a vinyl group, an alkynyl group, an ethynyl group, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 10 carbon atoms, an aryl group having 6 to 30 carbon atoms, and a heteroaryl group having 2 to 30 carbon atoms.
    Type: Application
    Filed: October 23, 2023
    Publication date: June 20, 2024
    Inventors: Sachiko KAWAKAMI, Kazuki KAJIYAMA
  • Patent number: 11985890
    Abstract: An object of one embodiment of the present invention is to provide a novel organic compound. The organic compound is a triarylamine derivative. The triarylamine derivative has an aryl group including a skeleton in which a naphthyl group is bonded to a naphthylene group. The other two aryl groups are each independently a phenyl group, a biphenyl group, or a terphenyl group. These groups may each have a substituent. As the substituent, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms can be selected.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: May 14, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Anna Tada, Yusuke Takita, Tsunenori Suzuki, Naoaki Hashimoto, Satoshi Seo
  • Publication number: 20240155863
    Abstract: A light-emitting device having high heat resistance in a manufacturing process is provided.
    Type: Application
    Filed: February 2, 2022
    Publication date: May 9, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yui Yoshiyasu, Naoaki Hashimoto, Tatsuyoshi TAKAHASHI, Sachiko KAWAKAMI, Satoshi SEO