Patents by Inventor Yuji Ueda

Yuji Ueda 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: 20200303561
    Abstract: A field-effect transistor including a semiconductor layer formed of an n-type metal oxide semiconductor, wherein the n-type metal oxide semiconductor includes indium oxide, wherein the indium oxide is n-type doped through introduction of one or more kinds of cations as dopants, and wherein the n-type metal oxide semiconductor has a peak detected at an angle corresponding to a (222) plane of indium oxide having a bixbite structure in an X-ray diffraction method using a two-dimensional detector.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 24, 2020
    Inventors: Yukiko ABE, Yuichi ANDO, Yuki NAKAMURA, Shinji MATSUMOTO, Yuji SONE, Naoyuki UEDA, Ryoichi SAOTOME, Sadanori ARAE, Minehide KUSAYANAGI
  • Patent number: 10777709
    Abstract: Provided is a substrate with transparent electrode, which is capable of achieving both acceleration of crystallization dining a heat treatment and suppression of crystallization under a normal temperature environment. In the substrate with transparent electrode, a transparent electrode thin-film formed of a transparent conductive oxide is formed on a film substrate. An underlayer that contains a metal oxide as a main component is formed between the film substrate and the transparent electrode thin-film. The underlayer and the transparent electrode thin-film are in contact with each other. The transparent electrode thin-film is amorphous, and the base layer is dielectric and crystalline.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: September 15, 2020
    Assignee: KANEKA CORPORATION
    Inventors: Takashi Kuchiyama, Hironori Hayakawa, Hiroaki Ueda, Yuji Motohara, Kenji Yamamoto
  • Patent number: 10748784
    Abstract: A method is provided for manufacturing a field effect transistor that includes a gate insulating layer and an electrode including a first conductive film and a second conductive film successively laminated on a predetermined surface of the gate insulating layer. The method includes forming an oxide film including element A, which is an alkaline earth metal, and element B, which is at least one of Ga, Sc, Y and a lanthanide, as the gate insulating layer; forming a first conductive film that dissolves in an organic alkaline solution on the oxide film; forming a second conductive film on the first conductive film; etching the second conductive film with an etching solution having a higher etch rate for the second conductive film as compared with that for the first conductive film; and etching the first conductive film with the organic alkaline solution using the second conductive film as a mask.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Sadanori Arae, Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Shinji Matsumoto, Yuji Sone, Ryoichi Saotome, Minehide Kusayanagi
  • Publication number: 20200246776
    Abstract: An objective of the present disclosure is to provide an adsorption material that has a carrier material with retained physical strength, and efficiently adsorbs an immunosuppressive protein. The present disclosure provides an adsorption material for immunosuppressive protein. The adsorption material includes a water-insoluble carrier to which at least one nitrogen-containing compound selected from a polyamine represented by a predetermined formula and aliphatic amines represented by predetermined formulae is bound. A total content of amino groups on the water-insoluble carrier is more than 0 ?mol and 2500 ?mol or less per 1 g, and a content of primary amino groups on the water-insoluble carrier is 450 ?mol or less per 1 g.
    Type: Application
    Filed: September 7, 2018
    Publication date: August 6, 2020
    Applicants: TORAY INDUSTRIES, INC., NATIONAL UNIVERSITY CORPORATION SHIGA UNIVERSITY OF MEDICAL SCIENCE
    Inventors: Junichi KASUYA, Ryo MATSUNAGA, Yoshiyuki UENO, Yuji UEDA, Kazuo TERAMOTO, Kazumasa OGASAWARA
  • Publication number: 20200215253
    Abstract: An objective of the present disclosure is to provide an adsorption material that can selectively adsorb immunosuppressive leukocyte. The present disclosure provides an adsorption material for immunosuppressive leukocyte. The adsorption material includes a water-insoluble carrier to which at least one nitrogen-containing compound selected from a polyamine represented by a predetermined formula and aliphatic amines represented by predetermined formulae are bound. A form of the water-insoluble carrier is a fiber or a particle, a diameter of the fiber or the particle is 15 to 50 ?m, and an arithmetic mean roughness of a surface of the water-insoluble carrier is 0.1 to 3.0 ?m.
    Type: Application
    Filed: September 7, 2018
    Publication date: July 9, 2020
    Applicants: TORAY INDUSTRIES, INC., NATIONAL UNIVERSITY CORPORATION SHIGA UNIVERSITY OF MEDICAL SCIENCE
    Inventors: Yoshiyuki UENO, Junichi KASUYA, Toru ARAKANE, Ryo MATSUNAGA, Yumiko SEKIYA, Yuji UEDA, Kazuo TERAMOTO, Kazumasa OGASAWARA
  • Patent number: 10699632
    Abstract: A field-effect transistor including: a gate electrode, which is configured to apply gate voltage; a source electrode and a drain electrode, which are configured to take electric current out; a semiconductor layer, which is disposed to be adjacent to the source electrode and the drain electrode; and a gate insulating layer, which is disposed between the gate electrode and the semiconductor layer, wherein the gate insulating layer includes a first gate insulating layer containing a first oxide containing Si and an alkaline earth metal and a second gate insulating layer disposed to be in contact with the first gate insulating layer and containing a paraelectric amorphous oxide containing a Group A element which is an alkaline earth metal and a Group B element which is at least one selected from the group consisting of Ga, Sc, Y, and lanthanoid.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 30, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Ryoichi Saotome, Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Shinji Matsumoto, Yuji Sone, Sadanori Arae, Minehide Kusayanagi
  • Publication number: 20200176588
    Abstract: A sputtering target for an insulating oxide film, the sputtering target including a sintered body including a lanthanum oxide and at least one selected from the group consisting of a beryllium oxide, a magnesium oxide, a calcium oxide, a strontium oxide, and a barium oxide, wherein lanthanum has highest molar ratio among elements other than oxygen contained in the sintered body.
    Type: Application
    Filed: November 27, 2019
    Publication date: June 4, 2020
    Inventors: Yukiko ABE, Yuki NAKAMURA, Shinji MATSUMOTO, Yuji SONE, Naoyuki UEDA, Ryoichi SAOTOME, Minehide KUSAYANAGI
  • Patent number: 10672914
    Abstract: To provide a field-effect transistor, containing: a gate electrode configured to apply gate voltage; a source electrode and a drain electrode, both of which are configured to take out electric current; an active layer formed of a n-type oxide semiconductor, provided in contact with the source electrode and the drain electrode; and a gate insulating layer provided between the gate electrode and the active layer, wherein work function of the source electrode and drain electrode is 4.90 eV or greater, and wherein an electron carrier density of the n-type oxide semiconductor is 4.0×1017 cm?3 or greater.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: June 2, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Shinji Matsumoto, Naoyuki Ueda, Yuki Nakamura, Mikiko Takada, Yuji Sone, Ryoichi Saotome, Sadanori Arae, Yukiko Abe
  • Publication number: 20200141289
    Abstract: A valve timing controller includes: a driving-side rotating body rotating in synchronization with a crankshaft of an internal combustion engine; a driven-side rotating body disposed coaxially with a rotation axis of the driving-side rotating body and rotating integrally with a valve opening and closing camshaft; advancing and retarding chambers formed between the driving-side and driven-side rotating bodies; a control valve unit controlling supply and discharge of a fluid to and from the advancing and retarding chambers; and a check valve unit disposed upstream of the control valve unit in a supply flow passage. A pressure space is provided between the control valve and check valve units, the control valve unit has a flow passage structure, and the check valve unit includes a supply flow passage and a return check valve.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 7, 2020
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takeo ASAHI, Yuji NOGUCHI, Kazuo UEDA
  • Publication number: 20200141290
    Abstract: A check valve includes: a wall body in which a communication hole enabling flow of a fluid is formed; a valve body movable to a closed position where the communication hole is closed as the valve body comes into close contact with the wall body or to an open position where the fluid flows through the communication hole as the valve body is separated from the wall body; a spring body urging the valve body in a direction in which the valve body comes into close contact with the wall body; and a spring receiving member receiving a reaction force when the spring body urges the valve body. The spring body is configured as a conical spring, so that a winding diameter of one end portion is larger than a winding diameter of the other end portion in a compression direction.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 7, 2020
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takeo ASAHI, Yuji NOGUCHI, Kazuo UEDA
  • Patent number: 10643901
    Abstract: A field-effect transistor includes a gate electrode to apply a gate voltage, a source electrode and a drain electrode to take electric current out, a semiconductor layer disposed adjacent to the source electrode and the drain electrode, and a gate insulating layer disposed between the gate electrode and the semiconductor layer, wherein the gate insulating layer includes an oxide including silicon and one or two or more alkaline earth metal elements.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 5, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Ryoichi Saotome, Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Shinji Matsumoto, Yuji Sone, Sadanori Arae, Minehide Kusayanagi
  • Patent number: 10642196
    Abstract: A cleaning device has a housing where an opening and a toner storage portion are formed, a cleaning member arranged in the opening, a collection roller collecting toner attached to the cleaning member, a blade scraping off toner attached to the collection roller, a sheet member dividing between the toner storage portion and the opening, and a sealing member arranged to be in contact with the housing and both end parts of the outer circumferential surface of the collection roller in the axial direction. A first region having a predetermined surface roughness is formed in a middle part of the circumferential surface of the collection roller in the axial direction, and a second region having a lower surface roughness than the first region is formed next to both end parts of the first region in the axial direction.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 5, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yoji Ueda, Yuji Kamiyama
  • Patent number: 10629623
    Abstract: A gas barrier laminate includes a substrate and a barrier layer formed on at least one of faces of the substrate. The barrier layer includes composite oxide including silicon and alkaline-earth metal.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: April 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Sadanori Arae, Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Shinji Matsumoto, Yuji Sone, Ryoichi Saotome, Minehide Kusayanagi
  • Publication number: 20200119406
    Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present disclosure includes: a wound electrode assembly (14) formed by spirally winding, via a separator (13), a positive electrode (11) and a negative electrode (12) in which a negative electrode mixture layer is formed on a negative electrode core, where: the negative electrode (12) includes a non-opposing portion (12a) that is wound 1.25 turns or more from an inner edge in a winding direction of the wound electrode assembly (14) without facing the positive electrode via the separator (13); the non-opposing portion (12a) includes a negative electrode mixture layer-formed portion (12c) in which the negative electrode mixture layer is formed on at least either side continuously in an inward winding direction from an outer edge in the winding direction; and the negative electrode mixture layer-formed portion (12c) is wound 0.75 turns or more.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 16, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Junichi SUGAYA, Atsushi MIZAWA, Yuji YAMAGAMI, Tomomichi UEDA, Masahiro NAKAMURA
  • Patent number: 10622847
    Abstract: A wireless power supply system includes: a primary power-supplying coil which is a power-supplying coil capable of wirelessly supplying electric power to another power-supplying coil; a first machine that supports the primary power-supplying coil; a secondary power-supplying coil which is a power-supplying coil wirelessly supplied with electric power from another power-supplying coil; and a second machine that can move while supporting the secondary power-supplying coil. The relative positional relationship or the relative attitudinal relationship between the first machine and the second machine can be adjusted corresponding to the movement or change in attitude of the second machine so that a state in which electric power is wirelessly supplied from the primary power-supplying coil to the secondary power-supplying coil is maintained.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: April 14, 2020
    Assignee: IHI CORPORATION
    Inventors: Yuji Takatsu, Akio Ueda, Motonao Niizuma, Kei Akune, Tooru Hayashi, Akihiko Tsuchiyama, Kazushi Sedokubo, Masaki Kawakita, Mai Kanda, Gongwei Li, Ryota Kokubu
  • Patent number: 10600916
    Abstract: A field-effect transistor including: a gate electrode, which is configured to apply gate voltage; a source electrode and a drain electrode, which are configured to take electric current out; an active layer, which is disposed to be adjacent to the source electrode and the drain electrode and is formed of an oxide semiconductor; and a gate insulating layer, which is disposed between the gate electrode and the active layer, wherein the gate insulating layer contains a paraelectric amorphous oxide containing a Group A element which is an alkaline earth metal and a Group B element which is at least one selected from the group consisting of Ga, Sc, Y, and lanthanoid, and wherein the active layer has a carrier density of 4.0×1017/cm3 or more.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: March 24, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yukiko Abe, Naoyuki Ueda, Shinji Matsumoto, Ryoichi Saotome, Yuki Nakamura, Yuji Sone, Sadanori Arae, Minehide Kusayanagi
  • Publication number: 20200083383
    Abstract: To provide a field-effect transistor, containing: a substrate; a protective layer; a gate insulating layer formed between the substrate and the protective layer; a source electrode and a drain electrode, which are formed to be in contact with the gate insulating layer; a semiconductor layer, which is formed at least between the source electrode and the drain electrode, and is in contact with the gate insulating layer, the source electrode, and the drain electrode; and a gate electrode, which is formed at an opposite side to the side where the semiconductor layer is provided, with the gate insulating layer being between the gate electrode and the semiconductor layer, and is in contact with the gate insulating layer, wherein the protective layer contains a metal oxide composite, which contains at least Si and alkaline earth metal.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yuji SONE, Naoyuki UEDA, Yuki NAKAMURA, Mikiko TAKADA, Shinji MATSUMOTO, Ryoichi SAOTOME, Sadanori ARAE, Yukiko ABE
  • Patent number: 10586873
    Abstract: A method for producing a field-effect transistor including first-oxide-layer and second-oxide-layer and forming front-channel or back-channel in region where the first-oxide-layer and the second-oxide-layer are adjacent to each other, the method including: forming second-precursor-layer, which is precursor of the second-oxide-layer, so as to be in contact with first-precursor-layer, which is precursor of the first-oxide-layer, and then converting the first-precursor-layer and the second-precursor-layer to the first-oxide-layer and the second-oxide-layer, respectively, the forming includes at least one of treatments (I) and (II) below: (I) treatment of: coating first-oxide-precursor-forming coating liquid that can form precursor of first oxide and contains solvent; and then removing the solvent to form the first-precursor-layer which is the precursor of the first-oxide-layer; and (II) treatment of: coating second-oxide-precursor-forming coating liquid that can form precursor of second oxide and contains solven
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: March 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Shinji Matsumoto, Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Yuji Sone, Ryoichi Saotome, Sadanori Arae, Minehide Kusayanagi
  • Publication number: 20200075768
    Abstract: A coating liquid for forming a metal oxide film, the coating liquid including: a metal source, which is at least one selected from the group consisting of inorganic salts, oxides, hydroxides, metal complexes, and organic acid salts; at least one alkali selected from the group consisting of organic alkalis and inorganic alkalis; and a solvent.
    Type: Application
    Filed: March 22, 2018
    Publication date: March 5, 2020
    Inventors: Naoyuki UEDA, Yuki NAKAMURA, Yukiko ABE, Shinji MATSUMOTO, Yuji SONE, Ryoichi SAOTOME, Sadanori ARAE, Minehide KUSAYANAGI, Yuichi ANDO
  • Patent number: 10575738
    Abstract: In a magnetic field measurement apparatus and a magnetic field measurement method provided herein, a magnetic field from an object is measured by a magnetic sensor group including a plurality of magnetic sensors. Then, an estimated value of a common noise component included in observed quantities of the magnetic sensors of all the channels of the magnetic sensor group is obtained as an external magnetic noise component. Finally the magnetic signal from the object is calculated by subtracting the estimated value from the observed quantity of each of the magnetic sensors.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: March 3, 2020
    Assignee: ADVANTEST COPORATION
    Inventors: Takeshi Tanaka, Yuji Ogata, Yoshiyuki Hata, Toshiaki Hayakawa, Tomoaki Ueda