Patents by Inventor Tomohiro Sakai

Tomohiro Sakai 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: 10990046
    Abstract: A fixing device includes a fixing belt, a pressure member, and a heating section. The heating section faces an inner circumferential surface of the fixing belt. The heating section includes a heater and a heater holding member. The heater heats the fixing belt. The heater holding member holds the heater. The heater holding member has a first side surface, a second side surface, and an inclined slit. The first and second side surfaces are in contact with the inner circumferential surface. The first side surface has the inclined slit. The inclined slit is located in the first side surface in a direction of a rotational axis of the fixing belt. The inclined slit has one end on a side of the pressure member and the other end on an opposite side to the side of the pressure member. The other end is located nearer a middle (center) of the first side surface in the direction of the rotational axis than the one end.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: April 27, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Tomohiro Watatani, Masakazu Uehara, Hironori Takahashi, Yuhiro Sakai, Fumito Nakamoto
  • Patent number: 10992837
    Abstract: To make it possible to easily extract additional information from printed matter by using a built-in camera of a mobile terminal. An information processing apparatus that reads additional information by capturing printed matter in which the additional information is embedded by using a built-in camera, including: a control unit configured to acquire a first captured image obtained by capturing the printed matter under a first image capturing condition and a second captured image obtained by capturing the printed matter under a second image capturing condition different from the first image capturing condition; and an extraction unit configured to extract the additional information by analyzing the first captured image and the second captured image.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 27, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuru Uratani, Hiroyuki Sakai, Yuki Ishida, Yuki Omagari, Tomohiro Suzuki
  • Patent number: 10951887
    Abstract: There is provided an imaging apparatus including a distribution unit configured to distribute a playlist, in which information relating to a plurality of moving image streams can be described, when a distribution request of the playlist is received, and a coding unit configured to encode a moving image frame corresponding to a moving image stream described in the playlist through intraframe coding before receiving a distribution request of a specific moving image stream when the distribution request of the playlist is received, wherein, when the distribution request of the specific moving image stream is received, the distribution unit distributes a moving image stream corresponding to the specific moving image stream including the moving image frame encoded through intraframe coding.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: March 16, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomohiro Sakai
  • Patent number: 10937942
    Abstract: A piezoelectric element includes a substrate, a first electrode formed on the substrate, a piezoelectric layer, which is a layered structure of a plurality of piezoelectric films each containing potassium, sodium, and niobium, formed on the first electrode, and a second electrode formed on the piezoelectric layer. A sodium concentration in the piezoelectric layer has a Na local maximum value, which is a local maximum value of the sodium concentration, in a first piezoelectric film, which is among the plurality of piezoelectric films, in the vicinity of the first electrode, a sodium concentration gradient decreasing from the Na local maximum value toward the second electrode, and a Na local minimum value, which is a local minimum value of the sodium concentration, near a boundary between the first piezoelectric film and a second piezoelectric film formed immediately above the first piezoelectric film.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: March 2, 2021
    Inventors: Kazuya Kitada, Koji Sumi, Tomohiro Sakai, Toshiaki Takahashi, Tsutomu Asakawa
  • Patent number: 10811682
    Abstract: To provide a cathode active material capable of obtaining a lithium ion secondary battery which has a high discharge capacity and of which a decrease of the discharge capacity when a charge and discharge cycle is repeatedly carried out is suppressed, a positive electrode for a lithium ion secondary battery, and a lithium ion secondary battery. A cathode active material comprising a lithium-containing composite oxide represented by the formula aLi(Li1/3Mn2/3)O2.(1?a)LiMO2 (wherein M is an element containing at least Ni and Mn, and 0<a<1), wherein in an X-ray diffraction pattern, the integral breadth of a peak of (110) plane assigned to a crystal structure with space group C2/m is at most 1.25 deg.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: October 20, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Sakai
  • Publication number: 20200317563
    Abstract: To provide a colored optical layer capable of forming a solar cell module excellent in the design, and the power generation efficiency and the weather resistance, a method for producing an optical layer, an optical layer-provided solar cell module, an outer wall material for building, and a building. An optical layer having a functional layer containing an inorganic pigment and a matrix in which the inorganic pigment is dispersed, to be disposed on the side of plane of incidence of sunlight from solar cells, wherein at least a part of the inorganic pigment is an inorganic pigment having a maximum near infrared reflectance in a near infrared region at a wavelength of from 780 to 1,500 nm of at least 50%, an average particle size of from 5.0 to 280.0 nm and a specific surface area of from 5.0 to 1,000 m2/g.
    Type: Application
    Filed: June 4, 2020
    Publication date: October 8, 2020
    Applicants: AGC Inc., AGC CLASS EUROPE
    Inventors: Tomohiro SAKAI, Yasuo SUGAWARA, Yu ONOZAKI, Noriyoshi KAYABA, Yuichi KUWAHARA
  • Publication number: 20200314293
    Abstract: This embodiment relates to a transmitter and the like that prevent an increase of the number of cables of an external interface even when the types of signals to be transmitted increase. The transmitter includes a latch circuit, an encoder, a serializer, and a selector. The latch circuit keeps a level of each of a plurality of signals at the timing specified by a sampling clock, and then, outputs the plurality of signals as a parallel data signal. The encoder generates an encoded parallel data signal based on the parallel data signal from the latch circuit. The serializer generates a serial data signal based on the encoded parallel data signal from the encoder. The sampling clock has a frequency higher than a transmission rate of the fastest signal of the plurality of signals.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Applicant: THINE ELECTRONICS, INC.
    Inventors: Tomohiro SAKAI, Kazuhisa SASAKI, Satoshi MIURA, Daisuke IWAMA
  • Publication number: 20200295705
    Abstract: To provide a coating material capable of forming a solar cell module excellent in the weather resistance, the power generation efficiency and the design, a cover glass, a solar cell module comprising the cover glass, and an outer wall material for building. The cover glass of the present invention is a cover glass comprising a glass plate and a layer containing a fluorinated polymer having units based on a fluoroolefin, on at least one surface of the glass plate, which has an average visible reflectance of from 10 to 100%, and an average near infrared transmittance of from 20 to 100%.
    Type: Application
    Filed: June 4, 2020
    Publication date: September 17, 2020
    Applicants: AGC Inc., AGC GLASS EUROPE
    Inventors: Yu ONOZAKI, Tomohiro Sakai, Shun Saito, Noriyoshi Kayaba, Aichi Inoue, Tetsuji Irie
  • Patent number: 10763504
    Abstract: To provide a transition metal-containing hydroxide, which is a precursor of a lithium-containing composite oxide, with which it is possible to obtain a lithium ion secondary battery excellent in the discharge capacity and cycle characteristics, by using as a cathode active material a lithium-containing composite oxide obtained from the hydroxide. A transition metal-containing hydroxide, which is a precursor of a lithium-containing composite oxide, wherein in a distribution of the logarithmic derivative pore specific surface area relative to the pore size, obtained by BJH method, the proportion of the sum of the logarithmic derivative pore specific surface areas with pore sizes of 10 nm or larger, to 100% of the sum of the logarithmic derivative pore specific surface areas in the entire distribution, is at least 23%.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 1, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Sakai
  • Publication number: 20200266436
    Abstract: To provide a process for producing a cathode active material capable of obtaining a lithium ion secondary battery which has a high discharge capacity and a high initial efficiency, a cathode active material, a positive electrode for a lithium ion secondary battery, and a lithium ion secondary battery. A process for producing a cathode active material, which comprises a mixing step of mixing a lithium compound, an alkali metal compound other than Li, and a transition metal-containing compound containing at least Ni and Mn to obtain a mixture, a step of firing the mixture at a temperature of from 900 to 1,100° C. to obtain a first lithium-containing composite oxide containing the alkali metal other than Li, and a step of removing the alkali metal other than Li from the first lithium-containing composite oxide to obtain a second lithium-containing composite oxide represented by the following formula: aLi(Li1/3Mn2/3)O2. (1?a)LiMO2 wherein 0<a<1, and M is an element containing at least Ni and Mn.
    Type: Application
    Filed: November 9, 2016
    Publication date: August 20, 2020
    Applicant: Sumitomo Chemical Company, Limited
    Inventor: Tomohiro SAKAI
  • Patent number: 10742455
    Abstract: An equalizer adjusting device includes a comparator, an inequality counter, an adjuster, and the like. The comparator performs magnitude comparison between a voltage value Vout of each bit output from an equalizer and a threshold value MonLVL and outputs a logical value MonSMP according to a result of the comparison. The inequality counter inputs a logical value DatSMP output from a sampler in accordance with the result of magnitude comparison between the voltage value Vout of each bit and a reference value, and the logical value MonSMP output from the comparator and counts events in which the logical value DatSMP and the logical value MonSMP differ from each other, every period. The adjuster adjusts a gain of the equalizer and the threshold value MonLVL of the comparator based on a counted value of the inequality counter.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: August 11, 2020
    Assignee: THINE ELECTRONICS, INC.
    Inventor: Tomohiro Sakai
  • Publication number: 20200238702
    Abstract: A piezoelectric element includes: a first electrode and a second electrode; and a piezoelectric layer provided between the first electrode and the second electrode, where: the piezoelectric layer contains a complex oxide having a perovskite structure and including potassium, sodium, and niobium; on a cross-section of the piezoelectric layer, a standard deviation of values that are obtained by normalizing sodium atom concentrations in eight regions by an average value of the sodium atom concentrations in the eight regions is 0.140 or less; each of the regions includes a central line of the piezoelectric layer; each of the regions is a square having a size in a thickness direction of the piezoelectric layer and a size in a direction orthogonal to the thickness direction of 150 nm; and the eight regions are aligned in the direction orthogonal to the thickness direction.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 30, 2020
    Inventors: Tomohiro SAKAI, Kazuya Kitada, Yasumi Ikehara
  • Patent number: 10608165
    Abstract: Provided is a piezoelectric element including a first electrode provided above a substrate, a piezoelectric layer provided above the first electrode, containing potassium, sodium, and niobium, and having a perovskite structure, and a second electrode provided above the piezoelectric layer. In a case where the piezoelectric layer is divided into two portions at a center thereof in a thickness direction, the piezoelectric layer includes a first portion on the first electrode side and a second portion on the second electrode side. The piezoelectric layer includes line defects. A density of the line defects in the second portion is higher than a density of the line defects in the first portion.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 31, 2020
    Assignee: Seiko Epson Corportion
    Inventors: Tomohiro Sakai, Koichi Morozumi, Kazuya Kitada, Harunobu Koike, Koji Sumi
  • Publication number: 20200075787
    Abstract: To provide a cover glass for a solar cell module which can sufficiently maintain the power generation efficiency of a solar cell module, even when a design is imparted to the entire surface of the cover glass so as to make solar cells be invisible from the outside, and a solar cell module. To provide a cover glass 14 to be bonded on light-receiving surfaces 16A and 16B of solar cells 16 via an encapsulant material 18, which has a visible transmittance of from 0% to 60% and an average infrared transmittance of from 20% to 100%, which is a value calculated by simply averaging transmittances at 5 nm intervals in an infrared region at a wavelength of from 780 nm to 1,500 nm.
    Type: Application
    Filed: November 7, 2019
    Publication date: March 5, 2020
    Applicants: AGC Inc, AGC GLASS EUROPE
    Inventors: Tomohiro SAKAI, Tetsuji IRIE, Yu ONOZAKI, Aichi INOUE, Manabu NISHIZAWA, Hiroyuki YAMAMOTO
  • Publication number: 20200045096
    Abstract: A video data transmission apparatus that transmits video data including a plurality of frame images in units of segment data of a predetermined segment time includes a generation unit, a reception unit, a determination unit and a transmission unit. The generation unit generates the plurality of frame images of a predetermined frame period. The reception unit receives specification information that specifies a length of the segment time from an external apparatus. The determination unit determines the length of the segment time based on the predetermined frame period and the specification information. The transmission unit transmits information for acquiring the segment data, the information indicating the length of the segment time determined by the determination unit, to the external device.
    Type: Application
    Filed: July 25, 2019
    Publication date: February 6, 2020
    Inventor: Tomohiro Sakai
  • Publication number: 20200035905
    Abstract: A piezoelectric element includes a piezoelectric layer formed as a stacked structure of first, second, and third piezoelectric films. The first piezoelectric film is formed on a first electrode. The second piezoelectric film is formed on the first piezoelectric film. The third piezoelectric film is formed on the second piezoelectric film. Each of the first, second, and third piezoelectric films includes potassium, sodium, and niobium. A second electrode is formed on the piezoelectric layer. A concentration of sodium in the first piezoelectric film is greater than a concentration of sodium in the second piezoelectric film. The concentration of sodium in the second piezoelectric film is greater than a concentration of sodium in the third piezoelectric film.
    Type: Application
    Filed: May 23, 2019
    Publication date: January 30, 2020
    Inventors: Tomohiro SAKAI, Kazuya KITADA, Koji SUMI
  • Publication number: 20200021468
    Abstract: An equalizer adjusting device includes a comparator, an inequality counter, an adjuster, and the like. The comparator performs magnitude comparison between a voltage value Vout of each bit output from an equalizer and a threshold value MonLVL and outputs a logical value MonSMP according to a result of the comparison. The inequality counter inputs a logical value DatSMP output from a sampler in accordance with the result of magnitude comparison between the voltage value Vout of each bit and a reference value, and the logical value MonSMP output from the comparator and counts events in which the logical value DatSMP and the logical value MonSMP differ from each other, every period. The adjuster adjusts a gain of the equalizer and the threshold value MonLVL of the comparator based on a counted value of the inequality counter.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 16, 2020
    Applicant: THINE ELECTRONICS, INC.
    Inventor: Tomohiro SAKAI
  • Patent number: 10427981
    Abstract: A piezoelectric material contains: a first component which is a rhombohedral crystal in a single composition, has a Curie temperature Tc1, and is a lead-free-system composite oxide having a perovskite-type structure; a second component which is a crystal other than the rhombohedral crystal in a single composition, has a Curie temperature Tc2<Tc1, and is a lead-free-system composite oxide having a perovskite-type structure; and a third component which is a crystal other than the rhombohedral crystal in a single composition similar to the second component, has a Curie temperature Tc3?Tc1, and is a lead-free-system composite oxide that has a perovskite-type structure and is different from the second component. When a molar ratio of the third component to the sum of the second component and the third component is ? and ?×Tc3+(1??)×Tc2 is Tc4, |Tc4?Tc2|?50° C.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: October 1, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Koji Sumi, Kazuya Kitada, Tomohiro Sakai, Yasuaki Hamada, Tetsuya Isshiki, Satoshi Kimura, Akio Ito, Tsuneo Handa
  • Publication number: 20190296347
    Abstract: To provide a cathode active material with which it is possible to obtain a lithium ion secondary battery having a high discharge capacity and being excellent in the cycle characteristic, and its production process. A cathode active material, comprising particles of a lithium-containing composite oxide, the lithium-containing composite oxide being represented by Li?NiaCobMncTidMeO2+? wherein ? is from 1 to 1.8, a is from 0.15 to 0.5, b is from 0 to 0.09, c is from 0.33 to 0.8, d is from 0.01 to 0.1, e is from 0 to 0.1, ? is from 0 to 0.8, a+b+c+d+e=1, and M is Mg, Al, Ca or the like, wherein in an X-ray diffraction pattern, the ratio (H020/H003) of the height of a peak of (020) plane assigned to a crystal structure with space group C2/m to the height of a peak of (003) plane assigned to a crystal structure with space group R-3m is at least 0.02, and D90/D10 is at most 4.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 26, 2019
    Inventor: Tomohiro SAKAI
  • Publication number: 20190252678
    Abstract: To provide a cathode active material capable of obtaining a lithium ion secondary battery which has a high discharge capacity and of which a decrease of the discharge capacity when a charge and discharge cycle is repeatedly carried out is suppressed, a positive electrode for a lithium ion secondary battery, and a lithium ion secondary battery. A cathode active material comprising a lithium-containing composite oxide represented by the formula aLi(Li1/3Mn2/3)O2.(1?a)LiMO2 (wherein M is an element containing at least Ni and Mn, and 0<a<1), wherein in an X-ray diffraction pattern, the integral breadth of a peak of (110) plane assigned to a crystal structure with space group C2/m is at most 1.25 deg.
    Type: Application
    Filed: November 9, 2016
    Publication date: August 15, 2019
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro SAKAI