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).

  • 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
  • Publication number: 20240147745
    Abstract: A light-emitting device with a high resolution and favorable characteristics manufactured by a photolithography method is provided. In the light-emitting device, a first light-emitting device and a second light-emitting device are adjacent each other. The first light-emitting device includes a first EL layer, and the second light-emitting device includes a second EL layer. The first EL layer includes at least a first light-emitting layer and a first electron-transport layer, and the second EL layer includes at least a second light-emitting layer and a second electron-transport layer. The first electron-transport layer contains a first heteroaromatic compound and a first organic compound, and the second electron-transport layer contains a second heteroaromatic compound and a second organic compound.
    Type: Application
    Filed: February 2, 2022
    Publication date: May 2, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yui YOSHIYASU, Naoaki HASHIMOTO, Tatsuyoshi TAKAHASHI, Sachiko KAWAKAMI, Satoshi SEO
  • Publication number: 20240138183
    Abstract: A method for manufacturing a novel display apparatus is provided. The method includes a first step of forming a first electrode, a second electrode, and a first gap over an insulating film, a second step of forming a first film over the second electrode; a third step of forming a first layer overlapping with the first electrode, a fourth step of removing the first film by an etching method to form a first unit overlapping with the first electrode, a fifth step of removing a surface of the second electrode, a sixth step of forming a second film over the first layer and the second electrode, a seventh step of forming a second layer overlapping with the second electrode, and an eighth step of removing the second film by an etching method using the second layer to form a second unit overlapping with the second electrode and a second gap.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 25, 2024
    Inventors: Yasutaka NAKAZAWA, Takayuki OHIDE, Naoto GOTO, Hiroki ADACHI, Satoru IDOJIRI, Hayato YAMAWAKI, Kenichi OKAZAKI, Sachiko KAWAKAMI
  • Publication number: 20240132439
    Abstract: A highly heat-resistant organic compound with favorable hole-transport properties is provided. The organic compound is represented by General Formula (G1). In General Formula (G1), X represents a sulfur atom or an oxygen atom, and R21 to R25 and R27 to R30 each independently represent any one of hydrogen, halogen, a nitrile group, an alkenyl group, a vinyl group, an alkynyl group, an ethynyl group, a straight-chain 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, an 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. Ar1 represents an aryl group having 6 to 30 carbon atoms or a heteroaryl group having 2 to 30 carbon atoms. Ar2 is represented by General Formula (G1-1).
    Type: Application
    Filed: September 29, 2023
    Publication date: April 25, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Sachiko Kawakami, Kazuki KAJIYAMA
  • Publication number: 20240130228
    Abstract: A light-emitting device with high heat resistance in a manufacturing process is to be provided.
    Type: Application
    Filed: January 31, 2022
    Publication date: April 18, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yui Yoshiyasu, Naoaki HASHIMOTO, Tatsuyoshi TAKAHASHI, Sachiko KAWAKAMI, Satoshi SEO
  • Publication number: 20240121979
    Abstract: A light-emitting device with high heat resistance in a manufacturing process is to be provided.
    Type: Application
    Filed: February 1, 2022
    Publication date: April 11, 2024
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yui YOSHIYASU, Naoaki HASHIMOTO, Tatsuyoshi TAKAHASHI, Sachiko KAWAKAMI, Satoshi SEO
  • Publication number: 20240121976
    Abstract: An optical device with favorable characteristics is provided. An optical device with low driving voltage is provided. An optical device with low power consumption is provided. The optical device includes a first electrode, a second electrode, an active layer, and a carrier-transport layer. The active layer is positioned between the first electrode and the second electrode. The active layer contains a first organic compound and a second organic compound, the first organic compound is represented by General Formula (G1), and the second organic compound is represented by General Formula (G2-1). The carrier-transport layer is positioned between the second electrode and the active layer and the thickness of the carrier-transport layer is greater than or equal to 10 nm and less than or equal to 300 nm.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 11, 2024
    Inventors: Taisuke KAMADA, Anna TADA, Sachiko KAWAKAMI, Daisuke KUBOTA
  • Publication number: 20240107883
    Abstract: A novel mixed material with improved resistance is provided. The mixed material includes a first heteroaromatic compound and a second heteroaromatic compound, and the first heteroaromatic compound is represented by any one of General Formulae (G1) to (G6). The second heteroaromatic compound is not represented by the same general formula as that of the first heteroaromatic compound.
    Type: Application
    Filed: December 4, 2023
    Publication date: March 28, 2024
    Inventors: Yui YOSHIYASU, Naoaki HASHIMOTO, Tatsuyoshi TAKAHASHI, Sachiko KAWAKAMI, Satoshi SEO
  • Patent number: 11917882
    Abstract: A light-emitting device, an electronic device, or a lighting device with low power consumption and high reliability is provided. The light-emitting device includes a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element. The first to fourth light-emitting elements include the same EL layer between an anode and a cathode. The EL layer includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer contains a fluorescent substance. The peak wavelength of an emission spectrum of the fluorescent substance in a toluene solution of the fluorescent substance is 440 nm to 460 nm, preferably 440 nm to 455 nm. The second light-emitting layer contains a phosphorescent substance. The first light-emitting element exhibits blue emission. The second light-emitting element exhibits green emission. The third light-emitting element exhibits red emission.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: February 27, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Toshiki Sasaki, Tsunenori Suzuki, Sachiko Kawakami, Naoaki Hashimoto
  • Publication number: 20240026537
    Abstract: A novel method for forming a metal oxide is provided. The metal oxide is formed using a precursor with a high decomposition temperature while a substrate is heated to higher than or equal to 300° C. and lower than or equal to 500° C. In the formation, plasma treatment, microwave treatment, or heat treatment is preferably performed as impurity removal treatment in an atmosphere containing oxygen. The impurity removal treatment may be performed while irradiation with ultraviolet light is performed. The metal oxide is formed by alternate repetition of precursor introduction and oxidizer introduction. For example, the impurity removal treatment is preferably performed every time the precursor introduction is performed more than or equal to 5 times and less than or equal to 10 times.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 25, 2024
    Inventors: Shunpei YAMAZAKI, Tetsuya KAKEHATA, Sachiko KAWAKAMI, Fumito ISAKA, Yuji EGI
  • Publication number: 20230416201
    Abstract: A novel organic compound that is highly convenient, useful, or reliable is provided. The organic compound is represented by General Formula (G1). Note that R1 to R4 each independently represent hydrogen (including deuterium), a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms; Ar1 is represented by General Formula (g1-1) below; Ar2 represents a substituted or unsubstituted aryl group having 10 to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms; Ar3 is represented by General Formula (g1-2) below; ? represents a substituted or unsubstituted arylene group having 6 to 30 carbon atoms; and n represents an integer of 0 to 4.
    Type: Application
    Filed: June 7, 2023
    Publication date: December 28, 2023
    Inventors: Anna TADA, Kyoko TAKEDA, Sachiko KAWAKAMI, Hiromitsu KIDO
  • Publication number: 20230348400
    Abstract: A novel organic compound is provided. The organic compound is represented by General Formula (G1).
    Type: Application
    Filed: April 24, 2023
    Publication date: November 2, 2023
    Inventors: Takuya HARUYAMA, Sachiko KAWAKAMI, Yui YOSHIYASU, Nobuharu OHSAWA, Takeyoshi WATABE, Hideko YOSHIZUMI
  • Publication number: 20230348477
    Abstract: An electron-injection organic compound with low solubility in water is provided. An organic compound represented by General Formula (G1) is provided. In the organic compound, Ar represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms forming a ring or a substituted or unsubstituted heteroaromatic hydrocarbon group having 2 to 30 carbon atoms forming a ring, each of R1 and R2 independently represents hydrogen (including deuterium), an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms forming a ring, or a substituted or unsubstituted heteroaryl group having 2 to 13 carbon atoms forming a ring, n represents an integer greater than or equal to 1 and less than or equal to 6, and L is the group represented by General Formula (L-1).
    Type: Application
    Filed: April 24, 2023
    Publication date: November 2, 2023
    Inventors: Masatoshi TAKABATAKE, Yui YOSHIYASU, Sachiko KAWAKAMI, Takeyoshi WATABE, Nobuharu OHSAWA, Yuko KUBOTA
  • Publication number: 20230354704
    Abstract: An increase in voltage of a light-emitting device manufactured through a step of forming an aluminum oxide film in contact with an organic compound layer is inhibited. An organic compound film is formed over a first electrode. An organic mask film containing an organic compound which has low solubility to water or a chemical solution including water as a solvent is formed over the organic compound film. An inorganic mask layer is formed over the organic mask film. Shapes of the organic mask film and the organic compound film are processed with the use of the inorganic mask layer, whereby an organic mask layer and an organic compound layer are formed. At least parts of the inorganic mask layer and the organic mask layer are removed with the use of water or a liquid including water as a solvent.
    Type: Application
    Filed: April 24, 2023
    Publication date: November 2, 2023
    Inventors: Yasuhiro NIIKURA, Sachiko KAWAKAMI, Naoaki HASHIMOTO, Yui YOSHIYASU
  • Publication number: 20230354625
    Abstract: A photoelectric conversion device in which an increase in driving voltage is inhibited is provided. The photoelectric conversion device includes a first electrode, a second electrode, and an organic compound layer; the organic compound layer is positioned between the first electrode and the second electrode; the organic compound layer includes a first layer; a structure body including projections is included between the first layer and the second electrode; and the structure body contains a first organic compound.
    Type: Application
    Filed: April 25, 2023
    Publication date: November 2, 2023
    Inventors: Daisuke KUBOTA, Akio YAMASHITA, Kazuya SUGIMOTO, Taisuke KAMADA, Sachiko KAWAKAMI, Kazuki KAJIYAMA, Yasutaka NAKAZAWA, Kaori IKADA
  • Publication number: 20230329105
    Abstract: An organic semiconductor device that can achieve high resolution and favorable reliability is provided. The organic semiconductor device is one of a plurality of light-emitting devices formed over an insulating layer, which includes a first electrode, a second electrode, and an organic compound layer. The organic compound layer is positioned between the first electrode and the second electrode. The organic compound layer includes a layer containing a first compound. When differential scanning calorimetry is performed on the first compound in such a manner that a cooling step is performed from the state in which the first compound is melted in a first heating step and a second heating step is successively performed, an exothermic peak is not observed in the cooling step and an exothermic peak and a melting point peak are not observed in the second heating step.
    Type: Application
    Filed: April 4, 2023
    Publication date: October 12, 2023
    Inventors: Satoko NUMATA, Harue OSAKA, Sachiko KAWAKAMI, Takashi SHINGU, Anna TADA, Yui YOSHIYASU, Yasuhiro NIIKURA, Eriko AOYAMA, Naoaki HASHIMOTO, Satoshi SEO
  • Patent number: 11778903
    Abstract: A novel organic compound having an emission spectrum peak at a wavelength longer than 850 nm and an absorption spectrum peak at a wavelength longer than 600 nm is provided. The organic compound is represented by General Formula (G1). In General Formula (G1), Ar1 to Ar4 each independently represent an aryl group having 6 to 13 carbon atoms in a ring. R1 to R8 each independently represent anyone of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an aryl group having 6 to 13 carbon atoms in a ring, and a heteroaryl group having 3 to 13 carbon atoms in a ring. Q1 and Q2 each independently represent a group having a carbazole skeleton or a group having a triarylamine skeleton and having 18 to 30 carbon atoms in a ring. Furthermore, m and n each independently represent 0 or 1.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: October 3, 2023
    Inventors: Kaori Ogita, Anna Tada, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo
  • Publication number: 20230286999
    Abstract: A novel organic compound that is highly convenient, useful, or reliable is provided. An organic compound represented by General Formula (G1) is provided. In General Formula (G1), D1 represents a thiophene-diyl group, a furan-diyl group, a thiophene-containing heteroarylene group, or a furan-containing heteroarylene group; Ar1 and Ar2 each independently represent a heteroarylene group or an arylene group; A1 and A2 each independently represent hydrogen, deuterium, a nitro group, an alkyl group, a halogen, an alkyl halide group, a cyano group, an alkoxy group, a vinyl group, or a formyl group; n1 represents an integer of 1 or more; and m1 and k1 each independently represent an integer of 0 to 3.
    Type: Application
    Filed: February 24, 2023
    Publication date: September 14, 2023
    Inventors: Anna TADA, Sachiko KAWAKAMI, Daisuke KUBOTA, Taisuke KAMADA, Kazuki KAJIYAMA
  • Publication number: 20230203054
    Abstract: An organic compound with a long lifetime and high emission efficiency is provided. An organic compound represented by General Formula (G1) is provided. In the formula, any one of X1 to X4 represents N, another one represents C, and the others represent C or N. Any one of C is bonded to a group represented by General Formula (r1), and the others are bonded to hydrogen (H), an alkyl (R) group, a cycloalkyl (Cy) group, an aryl (Ar) group, or a heteroaryl (Het) group. Ar1 represents an aromatic hydrocarbon, and is fused to an adjacent ring at a given site. When Ar1 represents a benzene ring, the benzene ring includes an Ar group or a Het group. Q and Z represent O or S. Any of R31 to R34 represents a bond to any one of X1 to X4, and the others represent H, an R group, a Cy group, an Ar group, or a Het group. Any one of R35 to R38 represents a polycyclic ring aromatic hydrocarbon group or a Het group, and the others represent H, an R group, a Cy group, an Ar group, or a Het group.
    Type: Application
    Filed: December 20, 2022
    Publication date: June 29, 2023
    Inventors: Sachiko KAWAKAMI, Yuki HAYASHI, Miyako MORIKUBO, Tomohiro KUBOTA, Hiromitsu KIDO, Tomoya YAMAGUCHI, Hideko YOSHIZUMI, Satoshi SEO