Patents by Inventor Masaki Yamada

Masaki Yamada 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: 20210048759
    Abstract: An electro-conductive layer of an electrophotographic electro-conductive member has a matrix-domain structure. The matrix contains a first rubber. The domain contains a second rubber and electro-conductive particles. Where ? represents an average of ratios of the cross-sectional area of the electro-conductive particles contained in each of the domains to the cross-sectional area of each of the domains appearing on a cross-section of the electro-conductive layer in a thickness direction, and ? represents a standard deviation of the ratios, ?/? is 0 or more and 0.4 or less, and ? is 20% or more and 40% or less. At least eight of samples with a first cubic shape 9 ?m on a side, which are sampled at arbitrary nine positions on the electro-conductive layer, satisfy the specified condition.
    Type: Application
    Filed: October 15, 2020
    Publication date: February 18, 2021
    Inventors: Tetsuo Hino, Yasuhiro Fushimoto, Norifumi Muranaka, Masafumi Kyogaku, Masaki Yamada, Hiroshi Inoue, Takumi Furukawa, Hiroaki Watanabe, Kenya Terada, Yuya Tomomizu, Toshimitsu Nakazawa
  • Publication number: 20210026295
    Abstract: An electrophotographic developing member includes an electro-conductive support and an electro-conductive layer provided on the support, wherein the electro-conductive layer has a matrix containing a first rubber and a plurality of domains dispersed in the matrix, and the domain contains a second rubber and an electronic conductive agent and when a frequency is log-log-plotted on a horizontal axis and an impedance is log-log-plotted on a vertical axis with respect to an impedance measured by applying an alternating current voltage having an amplitude of 1 V on the electro-conductive layer while changing a frequency between 1.0×10?2 Hz to 1.0×107 Hz under a specific environment, an inclination of an impedance on a high frequency side is ?0.8 or more and ?0.3 or less and an impedance on a low frequency side is 1.0×104? to 1.0×1011?.
    Type: Application
    Filed: October 14, 2020
    Publication date: January 28, 2021
    Inventors: Masaki Yamada, Yuichi Kikuchi, Tetsuo Hino, Kazuhiro Yamauchi, Takumi Furukawa, Hiroaki Watanabe, Kenya Terada, Yuya Tomomizu, Toshimitsu Nakazawa
  • Publication number: 20210006582
    Abstract: This security evaluation system includes a first graph generation part that generates a first evaluation graph representing a connection relationship between resources as a target for security evaluation; a second graph generation part that generates a second evaluation graph representing a personal relationship between areas where the resources are located; and display part that displays the first evaluation graph and the second evaluation graph in association with each other.
    Type: Application
    Filed: March 27, 2018
    Publication date: January 7, 2021
    Applicant: NEC Corporation
    Inventors: Yoshiyuki YAMADA, Yoshinobu OHTA, Masaki INOKUCHI
  • Patent number: 10884352
    Abstract: The electrophotographic member includes an electro-conductive substrate, a urethane resin having a structure of structural formula (1), an anion, and a resin particle, and has a protrusion derived from the resin particle on an outer surface thereof, the resin particle contains one or both of a urethane resin and a polyamide resin, the resin layer further contains carbon black, and the carbon black extracted from the resin layer has a BET specific surface area of 33 m2/g or more and 133 m2/g or less, and DBP absorption amount at a 70% torque value in DBP absorption measurement of 42 ml/100 g or more and 90 ml/100 g or less.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: January 5, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaki Yamada, Hiroaki Komatsu, Hideya Arimura
  • Publication number: 20200410109
    Abstract: This security evaluation system includes a first graph generation part that generates a first evaluation graph representing a connection relationship between resources as a target for security evaluation; a second graph generation part that generates a second evaluation graph representing a connection relationship between areas where the resources are located; and display part that displays the first evaluation graph and the second evaluation graph in association with each other.
    Type: Application
    Filed: March 27, 2018
    Publication date: December 31, 2020
    Applicant: NEC Corporation
    Inventors: Yoshiyuki YAMADA, Yoshinobu OHTA, Masaki INOKUCHI
  • Publication number: 20200389615
    Abstract: The present disclosure relates to a comparator, an AD converter, a solid-state imaging device, an electronic apparatus, and a comparator control method that can reduce power consumption while increasing the determination speed of the comparator. The comparator includes a comparison unit, a positive feedback circuit, and a current limiting unit. The comparison unit compares the voltage of an input signal and the voltage of a reference signal, and outputs a comparison result signal. The positive feedback circuit increases the transition speed at the time when the comparison result signal is inverted. The current limiting unit limits the current flowing in the comparison unit after the inversion of the comparison result signal. The present disclosure can be applied to comparators, for example.
    Type: Application
    Filed: August 21, 2020
    Publication date: December 10, 2020
    Applicant: SONY CORPORATION
    Inventors: Masaki SAKAKIBARA, Kenichi AOYAGI, Seiji YAMADA
  • Patent number: 10855910
    Abstract: An electronic device according to a first aspect comprises an imaging device and a processor. The imaging device has a predetermined imaging region, and is configured to capture images having different focal distances. The processor is configured to execute a first process of identifying two or more focus identification regions included in a first imaging region included in the predetermined imaging region by comparing the captured images in the first imaging region, and a second process of interpolating a focal distance of a middle region not belonging to the two or more focus identification regions in the first imaging region. The second process includes a process of interpolating the focal distance of the middle region based on a focal distance of an interpolation focus region that is located inside or outside the middle region and that is one of the two or more focus identification regions.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: December 1, 2020
    Assignee: KYOCERA Corporation
    Inventors: Masaki Tano, Masayoshi Kondo, Yusuke Suzuki, Masaya Kawakita, Seiji Yamada, Tomohiro Hamaguchi, Koji Saijo
  • Patent number: 10833255
    Abstract: There is provided a method for manufacturing a magnetic tunnel junction element which prevents properties degradation due to hydrogen ions, and to which RIE processing that is capable of securing an etching shape is applied. A multilayer film which has a magnetic film and an oxidation film, of which a thickness of the magnetic film is 2 nm or less, and of which the magnetic film and the oxidation film have an interface in a film surface direction is generated, a mask layer that is patterned is formed on the multilayer film, etching is performed with respect to the multilayer film on which the mask layer is formed, by using a mixed gas of a hydrogen gas and a nitrogen gas as a reaction gas, and a ratio of a flow rate of the hydrogen gas to a flow rate of the mixed gas is 50% or less.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 10, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventor: Masaki Yamada
  • Publication number: 20200294786
    Abstract: A semiconductor device of the embodiment includes first and second conductive layer; a silicon nitride layer between the first conductive layer and the second conductive layer; a silicon oxide layer between the silicon nitride layer and the second conductive layer; a silicon oxynitride layer between the silicon oxide layer and the second conductive layer; and a third conductive layer between the first conductive layer and the second conductive layer, the third conductive layer electrically connected to the first and second conductive layer, a first tilt angle of a plane where the third conductive layer is in contact with the silicon oxynitride layer with respect to an interface between the silicon nitride layer and the silicon oxide layer is smaller than a second tilt angle of a plane where the third conductive layer is in contact with the silicon oxide layer with respect to the interface.
    Type: Application
    Filed: August 30, 2019
    Publication date: September 17, 2020
    Inventor: Masaki Yamada
  • Publication number: 20200278290
    Abstract: A tablet measuring apparatus has a stainless steel housing, which contains a measuring section having a conveyance disk and an optical sensor, a tablet feeding section for feeding a tablet to the measuring section, and a recovery section for returning the tablet having undergone a measurement process to a tablet coating apparatus. The optical sensor can be adjusted in its height position by a height adjusting mechanism so that the optical sensor and the tablet can be separated from each other at a predetermined distance. The tablet is sucked to and conveyed by the conveyance disk and, during the conveyance, physical properties of the tablet are measured in a non-contact manner by the optical sensor. Out-of-spec tablets are discharged from a defective product discharging section, while in-spec tablets are fed back to the tablet coating apparatus through the recovery section.
    Type: Application
    Filed: November 6, 2018
    Publication date: September 3, 2020
    Inventors: Kiyoshi IMAI, Shigemi ISOBE, Takuya NAKAMURA, Hayato MISONO, Masaki TAKEUCHI, Shohei YAMADA
  • Patent number: 10761051
    Abstract: A molecular detection apparatus according to an arrangement includes: a collection unit collecting a detection target gas containing a molecule to be detected; a detector including a detection cell that has an organic probe provided in a sensor unit, the organic probe capturing the collected molecule, and a discriminator discriminating the molecule by a detection signal generated by the molecule being captured by the organic probe of the detection cell. The detection cell has the organic probe including a dicyanovinyl structure or a coumarin structure.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: September 1, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ko Yamada, Hirohisa Miyamoto, Reiko Yoshimura, Hiroko Nakamura, Mitsuhiro Oki, Yasushi Shinjo, Masaki Atsuta
  • Patent number: 10725377
    Abstract: A negative resist composition comprising a sulfonium compound having formula (A) and a base polymer is provided. The resist composition exhibits a high resolution during pattern formation and forms a pattern with minimal LER.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 28, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masaaki Kotake, Satoshi Watanabe, Keiichi Masunaga, Kenji Yamada, Masaki Ohashi
  • Publication number: 20200225593
    Abstract: The present invention provides an electrophotographic member having excellent deformation recovery even when stored or used under a high temperature and high humidity environment, which is useful in forming a high-quality electrophotographic image; a process cartridge; and an electrophotographic apparatus. The electrophotographic member of the present invention includes a conductive mandrel and an electro-conductive layer; the electro-conductive layer including a resin synthesized from an ion conducting agent and a compound being able to react with the ion conducting agent; the ion conducting agent including a specific anion and a cation having at least three hydroxyl groups; the compound being able to react with the hydroxyl group.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 16, 2020
    Inventors: Sosuke Yamaguchi, Masaki Yamada, Kazuhiro Yamauchi, Satoru Nishioka, Taichi Shintou
  • Publication number: 20200227737
    Abstract: A lithium ion secondary battery suppressed in heat generation entailed by charging and discharging is provided. A lithium ion secondary battery includes a positive electrode and a negative electrode. The positive electrode includes a positive electrode collector, a positive electrode active material layer provided at some part of the surface of the positive electrode collector, and including a positive electrode active material, and an insulation layer provided so as to be at the other part of the surface of the positive electrode collector and to be adjacent to the positive electrode active material layer. The insulation layer includes an inorganic filler, LPO, and a binder.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 16, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takanobu YAMADA, Masaki KATO
  • Patent number: 10707797
    Abstract: A motor control apparatus includes a current estimation unit configured to output a detected current value corresponding to each of the three-phase AC currents based on the measured current value and rotor rotation angle information of the motor. The current estimation unit defines a phase whose duty ratio of a driving pulse supplied to an inverter circuit, which generates the three-phase AC currents, becomes more than or equal to an operation switching threshold as an estimation target phase, calculates, for the estimation target phase, an estimated current value based on a coefficient value, which is calculated from the measured current value by the current measurement unit in a period in which the duty ratio of the driving pulse is lower than the operation switching threshold, and the rotor rotation angle information, and outputs the calculated estimated current value as the detected current value of the estimation target phase.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: July 7, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaki Yamada, Hiroyuki Iyama, Yu Sasaki
  • Publication number: 20200203491
    Abstract: A characteristic of a semiconductor device having a back electrode including an Au—Sb alloy is improved. The semiconductor device has a semiconductor substrate and the back electrode including the Au—Sb alloy layer. The back electrode is formed on the semiconductor substrate. The Sb concentration in the Au—Sb alloy layer is equal to or greater than 15 wt %, and equal to or less than 37 wt %. The thickness of the Au—Sb alloy layer is equal to or larger than 20 nm, and equal to or less than 45 nm.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Inventors: Yuji TAKAHASHI, Masaki WATANABE, Masashi SAHARA, Kentaro YAMADA, Masaki SAKASHITA, Shinichi MAEDA, Yoshiaki YAMADA
  • Patent number: 10668917
    Abstract: In a drive system including a battery, a power generation device (PGD) including a generator mounted to an engine shaft, and a drive device (DD) including a motor for driving a driven component, a drive controller performs a drive control for PGD and DD and a switching control for a switching device. During a parallel connection, respective high-voltage side terminals (HVTs) of PGD and the battery are connected to a HVT of DD, and respective low-voltage side terminals (LVTs) of PGD and the battery are connected to LVT of DD. During a series connection, HVT of any one of PGD and the battery is connected to HVT of DD, and LVT of another one of PGD and the battery is connected to LVT of DD, and terminals of PGD and the battery, which are not connected to DD, are connected to each other.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 2, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiro Miyama, Masaki Yamada, Takeshi Mori, Shigeki Harada, Moriyuki Hazeyama
  • Patent number: 10661642
    Abstract: In a back window part seal structure for a vehicle with a retractable roof wherein a weather strip is used, an outer panel provided on a deck cover includes an upper overlap portion that covers a weather strip at an upper edge of a back window from diagonally above and behind the vehicle to improve the sealing property and achieve a configuration in which the assembly failure is less likely to occur.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: May 26, 2020
    Assignee: WEBASTO JAPAN CO., LTD.
    Inventors: Koji Sawahata, Akio Yamada, Yasufumi Kawakami, Masaki Oda, Takashi Senoo, Miwa Shinohara, Keiichiro Nishiura
  • Patent number: 10649350
    Abstract: The present invention provides an electrophotographic member having excellent deformation recovery even when stored or used under a high temperature and high humidity environment, which is useful in forming a high-quality electrophotographic image; a process cartridge; and an electrophotographic apparatus. The electrophotographic member of the present invention includes a conductive mandrel and an electro-conductive layer; the electro-conductive layer including a resin synthesized from an ion conducting agent and a compound being able to react with the ion conducting agent; the ion conducting agent including a specific anion and a cation having at least three hydroxyl groups; the compound being able to react with the hydroxyl group.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: May 12, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Sosuke Yamaguchi, Masaki Yamada, Kazuhiro Yamauchi, Satoru Nishioka, Taichi Shintou
  • Publication number: 20200143829
    Abstract: An optical disk (100) of the present invention includes (i) a medium information region (101) (a) in which type identification information is recorded by recesses and/or protrusions which are formed by a given modulation method and whose lengths are longer than a length of an optical system resolution limit of a playback device and (b) in which first address information is recorded in a first address data format and (ii) a data region (102) (a) in which content data is recorded by recesses and/or protrusions which are formed by the given modulation method and which include a recess and/or a protrusion whose length is shorter than the length of the optical system resolution limit and (b) in which second address information is recorded in a second address data format.
    Type: Application
    Filed: January 2, 2020
    Publication date: May 7, 2020
    Inventors: Hirohisa YAMADA, Takayuki NAKA, Masaki YAMAMOTO, Yoshihisa ADACHI, Hideharu TAJIMA, Masahito KONISHI