Patents by Inventor Takashi Tamai

Takashi Tamai 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: 11969459
    Abstract: The present inventors have found that HMGB1 fragment peptides having a particular amino acid sequence exhibit the effects of improvement of cardiac function, inhibition of cardiomyocyte hypertrophy, inhibition of myocardial fibrosis, and promotion of angiogenesis in an animal model of dilated cardiomyopathy, that the particular HMGB1 fragment peptides also exhibit the effects of improvement of cardiac function, inhibition of cardiomegaly, inhibition of cardiomyocyte hypertrophy, inhibition of myocardial fibrosis, and promotion of angiogenesis in an animal model of ischemic cardiomyopathy caused by old myocardial infarction, and that the particular HMGB1 fragment peptides exhibit the effects of inhibition of cardiomyocyte hypertrophy and inhibition of myocardial fibrosis in an animal model of hypertensive cardiomyopathy.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: April 30, 2024
    Assignees: StemRIM Inc., OSAKA UNIVERSITY
    Inventors: Katsuto Tamai, Yoshiki Sawa, Shigeru Miyagawa, Takashi Kido, Takasumi Goto, Takehiko Yamazaki
  • Publication number: 20240117206
    Abstract: An ink contains water, a coloring material, a resin, and an organic solvent, wherein the dried layer of the ink has a surface free energy ?S having a polar component ?Sp of from 3.5 to 20 J/m2 at 25 degrees C.
    Type: Application
    Filed: September 22, 2023
    Publication date: April 11, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Mayumi YOSHIHARA, Michihiko Namba, Takashi Tamai, Shin Hasegawa, Yuta Nakamura, Daiki Hasebe
  • Publication number: 20240119544
    Abstract: A higher usage fee is set for external supply power as predetermined contract power increases. A battery management system includes: a contract power information acquisition section configured to acquire contract power information indicating the contract power; a power-in-use estimation section configured to estimate power in use in the storage plant in a target time zone in future; a discharge plan creation section configured to create a discharge plan in which discharge power from the battery is supplied as power to be used in the storage plant when the power in use in the target time zone exceeds the contract power; and a discharging control section configured to discharge the battery on the basis of the discharge plan. The power in use in the target time zone is estimated by the power-in-use estimation section.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 11, 2024
    Inventors: Tomoko Tamai, Takashi Komaru, Masanori Okabe, Eiji Teramoto, Kohei Fukunishi
  • Publication number: 20240118345
    Abstract: A battery management system includes: a battery module accommodation section; a charging and discharging control section; and a shipping target selection section. The battery module accommodation section is configured to separately accommodate a plurality of battery modules in blocks. The blocks each includes a predetermined number of the battery modules. The predetermined number is greater than or equal to 2. The charging and discharging control section is configured to charge and discharge the battery modules in units of the blocks. The battery modules are accommodated in the battery module accommodation section. The shipping target selection section is configured to select, in units of the blocks, the battery modules serving as shipping targets from the battery modules accommodated in the battery module accommodation section.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 11, 2024
    Inventors: Tomoko Tamai, Takashi Komaru, Masanori Okabe, Eiji Teramoto, Kohei Fukunishi
  • Publication number: 20230249450
    Abstract: A recording device includes a recording head including a first nozzle group that ejects a first ink and a second nozzle group that ejects a second ink having a color different from that of the first ink, a moving unit that relatively moves the recording head and a medium in a moving direction intersecting with a nozzle alignment direction, and a control unit. The recording head includes a first nozzle range in which a distance between the first nozzle group and the second nozzle group in the moving direction is a first distance and a second nozzle range in which the distance is a second distance greater than the first distance. In a case in which recording is performed on a medium using nozzles belonging to the second nozzle range, when recording is performed with a secondary color through ejection of the first ink and the second ink.
    Type: Application
    Filed: February 8, 2023
    Publication date: August 10, 2023
    Inventor: Takashi TAMAI
  • Publication number: 20230183501
    Abstract: An ink contains water, a coloring material, a resin, two or more types of organic solvents, and a surfactant, wherein the ink is horizontally discharged to a substrate.
    Type: Application
    Filed: October 27, 2022
    Publication date: June 15, 2023
    Inventors: Shin HASEGAWA, Takashi TAMAI, Michihiko NAMBA, Yuta NAKAMURA, Mayumi YOSHIHARA, Daiki HASEBE
  • Patent number: 11560491
    Abstract: A liquid composition includes an inorganic particle and a multivalent metal salt, wherein the liquid composition has a tacking force of 50 mN or less in an area of cast-coated paper where the liquid composition is applied in an amount of 0.12 mg/cm2 for the cast-coated paper followed by heating at 80 degrees C. for 15 seconds.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 24, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Dongsik Jang, Yukitaka Watarai, Tsutomu Maekawa, Takashi Tamai, Atsufumi Hanazawa, Koji Katsuragi
  • Patent number: 11507790
    Abstract: Provided is a printing method for performing printing using a serial printer. In printing of a print image including a line image, the printing method includes a raster line forming step of forming each of raster lines configuring the image, by a plurality of pass operations. In the formation of each of the raster lines, when printing of a region corresponding to edge pixels of the line image by a first pass operation, which is one of the plurality of pass operations, is first printing, and printing of the region corresponding to the edge pixels by a second pass operation that is different from the first pass operation, of the plurality of pass operations, is second printing, a brightness of the printing by the second printing is higher than a brightness of the printing by the first printing.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: November 22, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Takamitsu Kondo, Jun Hoshii, Kimitaka Kamijo, Tomoyuki Kondo, Eishin Yoshikawa, Takashi Tamai
  • Patent number: 11458736
    Abstract: A recording device includes a recording unit configured to discharge a plurality of colors of ink, and a control unit configured to control the recording unit to perform recording of an image on a recording medium, wherein the control unit is configured to perform color expansion processing to copy, to a target pixel, a recording amount of first ink included in another pixel, the target pixel and the other pixel configuring image data representing the image, the target pixel being adjacent to the other pixel, the other pixel including the recording amount of the first ink of the plurality of colors of ink, the target pixel including a recording amount of second ink of the plurality of colors of ink, and cause the recording unit to perform recording based on the image data after the color expansion processing. The target pixel does not include the recording amount of the first ink, and the second ink has a different color than the first ink.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: October 4, 2022
    Assignee: Seiko Epson Corporation
    Inventor: Takashi Tamai
  • Patent number: 11267255
    Abstract: An image forming method is provided. The method includes the steps of (a) applying an ink to a recording medium to form an image and (b) applying a pressure to the recording medium to which the ink has been applied. The ink comprises water, an organic solvent, and a colorant. When the ink is formed into an ink film, a maximum value of logarithmic damping ratio of the ink film is 1.50 or less and a time elapsed until the logarithmic damping ratio reaches the maximum value is 3,800 seconds or less, when measured by a rigid-body pendulum test at 60° C.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: March 8, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Shun Saito, Hiromi Sakaguchi, Takashi Tamai, Sayuri Kojima, Yuya Hirokawa
  • Publication number: 20210397913
    Abstract: Provided is a printing method for performing printing using a serial printer. In printing of a print image including a line image, the printing method includes a raster line forming step of forming each of raster lines configuring the image, by a plurality of pass operations. In the formation of each of the raster lines, when printing of a region corresponding to edge pixels of the line image by a first pass operation, which is one of the plurality of pass operations, is first printing, and printing of the region corresponding to the edge pixels by a second pass operation that is different from the first pass operation, of the plurality of pass operations, is second printing, a brightness of the printing by the second printing is higher than a brightness of the printing by the first printing.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 23, 2021
    Inventors: Takamitsu KONDO, Jun HOSHII, Kimitaka KAMIJO, Tomoyuki KONDO, Eishin YOSHIKAWA, Takashi TAMAI
  • Publication number: 20210300058
    Abstract: A recording device includes a recording unit configured to discharge a plurality of colors of ink, and a control unit configured to control the recording unit to perform recording of an image on a recording medium, wherein the control unit is configured to perform color expansion processing to copy, to a target pixel, a recording amount of first ink included in another pixel, the target pixel and the other pixel configuring image data representing the image, the target pixel being adjacent to the other pixel, the other pixel including the recording amount of the first ink of the plurality of colors of ink, the target pixel including a recording amount of second ink of the plurality of colors of ink, and cause the recording unit to perform recording based on the image data after the color expansion processing. The target pixel does not include the recording amount of the first ink, and the second ink has a different color than the first ink.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 30, 2021
    Inventor: Takashi TAMAI
  • Publication number: 20210292582
    Abstract: Provided is an ink including: a pigment-containing matter containing a pigment; an organic solvent; water; and a compound represented by General Formula (1) below. A difference (Ra?R0) is 2.0 or less, where Ra is a distance between a Hansen solubility parameter of the organic solvent and a Hansen solubility parameter of the pigment-containing matter determined by a Hansen solubility sphere method, and R0 is an interaction radius of the pigment-containing matter determined by the Hansen solubility sphere method. In the General Formula (1), R1, R2, R3, and R4 each independently represent a hydrogen atom or an alkyl group having 1 or more but 5 or less carbon atoms, and n represents an integer of 3 or more but 11 or less.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 23, 2021
    Inventors: Atsufumi HANAZAWA, Yuuki YOKOHAMA, Takashi TAMAI, Yukihiro IMANAGA, Kento SUGITA, Azumi MIYAAKE, Sayuri KOJIMA, Toru YOSHIKAWA, Koichiro OYAMA, Satoshi TAKAHASHI, Mizuki KUROHA
  • Publication number: 20210238432
    Abstract: An ink contains water, an organic solvent, a resin, and a pigment, wherein the organic solvent has a Hansen solubility parameter (HSP) value in a Hansen sphere in a ?D axis, ?P axis, and ?H axis coordinate space of a solid content of the ink.
    Type: Application
    Filed: February 2, 2021
    Publication date: August 5, 2021
    Inventors: Toru YOSHIKAWA, Yuuki YOKOHAMA, Takashi TAMAI, Satoshi TAKAHASHI, Sayuri KOJIMA, Atsufumi HANAZAWA, Azumi MIYAAKE, Yukihiro IMANAGA, Koichiro OYAMA, Kento SUGITA, Mizuki KUROHA
  • Patent number: 11040561
    Abstract: An ink and processing liquid set contains a processing liquid to be applied to a recording medium, the processing liquid including a multivalent metal salt and an ink to be applied to an area of the recording medium where the processing liquid has been applied, the ink including a urethane resin, a styrene-acrylic resin, and a pigment, wherein the following relations are satisfied: 0.5?B/C?0.7, where B represents a static surface tension of the ink and C represents a static surface tension of the processing liquid; and 0.5?E/D?0.9, and 35 (mN/m)?E?55 (mN/m), where D represents a dynamic surface tension at 15 ms of the processing liquid and E represents a dynamic surface tension at 1500 ms of the processing liquid.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: June 22, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Tamai, Dongsik Jang, Atsufumi Hanazawa, Satoshi Takahashi, Yoshiki Yanagawa, Tsutomu Maekawa, Yukitaka Watarai
  • Patent number: 10899145
    Abstract: An image forming method includes applying a processing fluid to a recording medium, applying an ink to the recording medium onto which the processing fluid has been applied, and heating the recording medium onto which the ink has been applied, wherein the ink comprises a black ink and at least one color ink other than the black ink, wherein the following relationship is satisfied: |?(k)-?(c)|?5 mN/m, where ?(k) represents a dynamic surface tension of the black ink at a surface lifetime of 15 ms and ?(c) represents a dynamic surface tension of the at least one color ink at a surface lifetime of 15 ms, wherein the ink discharged from an extreme downstream nozzle in a direction of recording medium conveyance is heated at 1.5 seconds or less after the ink is attached to the recording medium.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: January 26, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Sayuri Kojima, Takashi Tamai, Atsufumi Hanazawa
  • Publication number: 20200399495
    Abstract: A liquid composition includes an inorganic particle and a multivalent metal salt, wherein the liquid composition has a tacking force of 50 mN or less in an area of cast-coated paper where the liquid composition is applied in an amount of 0.12 mg/cm2 for the cast-coated paper followed by heating at 80 degrees C. for 15 seconds.
    Type: Application
    Filed: January 28, 2019
    Publication date: December 24, 2020
    Inventors: Dongsik JANG, Yukitaka WATARAI, Tsutomu MAEKAWA, Takashi TAMAI, Atsufumi HANAZAWA, Koji KATSURAGI
  • Patent number: 10851253
    Abstract: An image forming method includes applying white ink containing hollow resin particulate to a recording medium and contacting a heating roller having a diameter of 200 mm or less with a first surface of the recording medium.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 1, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tsutomu Maekawa, Koji Katsuragi, Takashi Tamai, Atsufumi Hanazawa, Dongsik Jang
  • Patent number: 10744795
    Abstract: A liquid discharge system includes a pretreatment execution device to perform pretreatment on a medium and a liquid discharge head to discharge liquid onto the medium based on image information on an image to be output. The liquid discharge system further includes circuitry configured to control a manner of the pretreatment based on the image information.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: August 18, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshihiro Harada, Takashi Tamai, Atsufumi Hanazawa, Sayuri Kojima
  • Publication number: 20200238731
    Abstract: An image forming method is provided. The method includes the steps of (a) applying an ink to a recording medium to form an image and (b) applying a pressure to the recording medium to which the ink has been applied. The ink comprises water, an organic solvent, and a colorant. When the ink is formed into an ink film, a maximum value of logarithmic damping ratio of the ink film is 1.50 or less and a time elapsed until the logarithmic damping ratio reaches the maximum value is 3,800 seconds or less, when measured by a rigid-body pendulum test at 60° C.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Inventors: Shun SAITO, Hiromi Sakaguchi, Takashi Tamai, Sayuri Kojima, Yuya Hirokawa