Patents by Inventor Masashi Suganuma

Masashi Suganuma 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: 11939422
    Abstract: A copolymer including a structural unit represented by Chemical Formula 1 wherein the copolymer is capable of improving luminous efficiency and durability, particularly, an improvement in luminescence life-span, of an electroluminescence device, particularly a quantum dot electroluminescence device.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Masashi Tsuji, Fumiaki Kato, Naotoshi Suganuma, Takahiro Fujiyama, Yusaku Konishi, Dae Young Chung, Ha Il Kwon, Soonmin Cha, Tae Ho Kim
  • Patent number: 11934145
    Abstract: A developing apparatus includes an electrostatic latent image bearer, a developing sleeve, a case, and an air filter. The case accommodates a two-component developer and the developing sleeve. The air filter is attached to the case. The air filter has a thickness of 2 to 20 mm and has a density gradient with a pressure loss of 2 to 40 Pa at a wind speed of 10 cm/s. The air filter forms an airflow sucked into the case from a gap between the developing sleeve and the case and forms an airflow discharged from the case through the air filter. The two-component developer accommodated in the case contains a magnetic particle a surface of which is coated with a resin layer. The resin layer contains at least one type of chargeable particle.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: March 19, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Minoru Masuda, Tohru Suganuma, Masashi Nagayama, Hiroyuki Kishida, Kento Takeuchi, Kaede Masuko, Tomomi Suzuki, Takuya Suganuma, Kazuki Yogosawa
  • Publication number: 20230043700
    Abstract: According to the present invention, there is provided a composition comprising a population of mitochondria with a smaller size and a population of lipid membrane-based vesicles encapsulating mitochondria in a closed space and a method for producing the composition.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 9, 2023
    Inventors: Masashi SUGANUMA, Yuma YAMADA, Hideyoshi HARASHIMA, Daisuke SASAKI, Mitsue HIBINO, Yoshihiro OHTA
  • Publication number: 20220267714
    Abstract: The present disclosure relates to methods of obtaining mitochondria from cells, mitochondria obtained by such methods, and uses of mitochondria obtained by such methods.
    Type: Application
    Filed: July 22, 2020
    Publication date: August 25, 2022
    Inventors: Yoshihiro OHTA, Arima OKUTANI, Momoka TAKAHASHI, Masashi SUGANUMA, Yoshie KAWASE
  • Publication number: 20220031743
    Abstract: Provided herein are a method for isolation and transplantation of intact mitochondria to a lymphoid organ (a primary lymphoid tissue or a secondary lymphoid tissue), a composition of cells prepared by using a method described herein, and a method for manufacturing cells described herein. In particular, provided herein are methods of isolating intact mitochondria from a donor cell. Also provided herein are methods of transplanting mitochondria into a recipient cell. In some aspects, the methods can be performed in vivo. Further provided are a composition of cells that include the cells prepared using the methods of the present invention.
    Type: Application
    Filed: September 13, 2019
    Publication date: February 3, 2022
    Applicant: LUCA Science Inc.
    Inventors: Masashi SUGANUMA, Hideyoshi HARASHIMA, Yuma YAMADA, Daisuke SASAKI, Takafumi YOKOTA
  • Patent number: 9121085
    Abstract: A method for manufacturing a composite metal alloy. An Mg material as an alloy base material and a carbon nanomaterial are mixed together to obtain a mixture in which the Mg material is covered with particles of the carbon nanomaterial. The mixture of the Mg material and carbon nanomaterial are sintered to obtain an Mg sintered compact including the carbon nanomaterial. The Mg sintered compact including the carbon nanomaterial is dissolved to obtain a melt of the composite metal alloy.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: September 1, 2015
    Assignee: NISSEI PLASTIC INSDUSTRIAL CO., LTD.
    Inventors: Atsushi Kato, Tomoyuki Sato, Kelta Arai, Daisuke Shiba, Masashi Suganuma
  • Publication number: 20140102905
    Abstract: In a method of plating aluminum based articles, an iron-based composite plating bath formed by admixing a nano-sized, particle-deposited carbon material into an iron plating bath at a ratio of 1.0 g per liter is provided. Using the iron-based composite plating bath, an iron-based composite plating layer containing the nano-sized, particle-deposited carbon material is plated on an aluminum-based base material.
    Type: Application
    Filed: December 13, 2013
    Publication date: April 17, 2014
    Applicants: ART METAL MFG.CO., LTD., NISSEI PLASTIC INDUSTRIAL CO., LTD.
    Inventors: Tomoyuki SATO, Masashi SUGANUMA, Tomonori KARASAWA, Shoji KANAI, Akira MATSUMOTO
  • Patent number: 8171979
    Abstract: A method for producing a carbon nanocomposite metal material with increased carbon nanomaterial dispersibility and increased binding between carbon nanomaterial and matrix metal stock is disclosed. A preform obtained by mixing a matrix metal stock and microparticulate-coated carbon nanomaterial without the need for a dispersant and then compacting the material is maintained for a set time period at a temperature that is at or above the melting point of the matrix metal stock. In this state, the heat-treated body is reduced to a temperature that allows hot working, and a compacting treatment is performed.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: May 8, 2012
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Keita Arai, Daisuke Shiba, Masashi Suganuma, Atsushi Kato
  • Patent number: 8051892
    Abstract: A method of manufacturing a metal-carbon nanocomposite material in which aluminum is used as the matrix is disclosed. The manufacturing method comprises mixing a Si-coated carbon nanomaterial (30) and a powdered Mg material (33), heating the mixture to a melting point of the Mg material or higher, and thereafter cooling the mixture to obtain an Mg-carbon nanomaterial (34). A metal-carbon nanomaterial in which Al is used as the matrix is provided by cooling the Mg-carbon nanomaterial and molten Al (40) in a mixed state.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: November 8, 2011
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Keita Arai, Atsushi Kato, Masashi Suganuma
  • Patent number: 8012275
    Abstract: In a method for manufacturing a composite-metal-forming material, heating a metal material a Mg alloy or an Al alloy is heated to a temperature in a region where a solid and a liquid are both present to thereby yield a semi-molten metal material in a semi-molten state. An additive material is introduced to the semi-molten metal material and kneading is performed to obtain a composite metal material. The composite metal material is heated to a solution temperature of the metal material and a solution treatment is performed to thereby yield a composite-metal-forming material.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: September 6, 2011
    Assignee: Nissei Plastic Industrial Co., Ltd
    Inventors: Taku Kawano, Tomoyuki Sato, Atsushi Kato, Masashi Suganuma, Keita Arai, Daisuke Shiba
  • Patent number: 7851592
    Abstract: The invention provides compositions and methods for inhibiting Chk1 and/or Chk2 kinases. Also provided are compositions and methods for inhibiting G2 cell arrest checkpoint, particularly in mammalian, e.g., human, cells. The compositions and methods of the invention are also used to treat disorders of cell growth, such as cancer. In particular, the invention provides methods for selectively sensitizing G1 checkpoint impaired cancer cells to DNA damaging agents and treatments. Also provided are methods for screening for compounds able to interact with, e.g., inhibit, enzymes involved in the G2 cell cycle arrest checkpoint, such as Chk1 and/or Chk2/Cds1 kinase.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: December 14, 2010
    Assignee: CanBas Co. Ltd.
    Inventors: Masashi Suganuma, Takumi Kawabe
  • Patent number: 7837811
    Abstract: The present invention provides a method for manufacturing a composite of a carbon nanomaterial and a metallic material which has a homogeneous composite metal structure and thixotropic properties by compositing a metallic material of a non-ferrous metal alloy with a carbon nanomaterial by using both stirring and ultrasonic vibration. The method comprises compositing the metallic material of the non-ferrous metal alloy with the carbon nanomaterial by adding the carbon nanomaterial in a state where the metallic material shows thixotropic properties by spheroidization of solid phase in a semi-solid state, and the compositing is performed by a process for stirring and kneading the semi-solid metallic material while keeping the temperature thereof at a solid-liquid coexisting temperature, and a process for dispersing the carbon nanomaterial to liquid phase between solid phases by ultrasonic vibration.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: November 23, 2010
    Assignees: Nissei Plastic Industrial Co., Ltd., Chiba Institute of Technology
    Inventors: Tetsuichi Motegi, Fumi Tanabe, Masashi Suganuma, Kazuo Anzai
  • Publication number: 20100282429
    Abstract: A method for producing a carbon nanocomposite metal material with increased carbon nanomaterial dispersibility and increased binding between carbon nanomaterial and matrix metal stock is disclosed. A preform obtained by mixing a matrix metal stock and microparticulate-coated carbon nanomaterial without the need for a dispersant and then compacting the material is maintained for a set time period at a temperature that is at or above the melting point of the matrix metal stock. In this state, the heat-treated body is reduced to a temperature that allows hot working, and a compacting treatment is performed.
    Type: Application
    Filed: November 15, 2007
    Publication date: November 11, 2010
    Inventors: Keita Arai, Daisuke Shiba, Masashi Suganuma, Atsushi Kato
  • Publication number: 20100255339
    Abstract: A technique for using an iron plating for coating an aluminum product that results in adequate durability. An aluminum piston (10) used as a plated aluminum product is covered by an iron-based composite plating layer (11). The iron-based composite plating layer (11) contains a carbon nanomaterial, which is applied to the aluminum-based base material using a iron-based composite plating bath formed by mixing a carbon nanomaterial into an iron plating bath.
    Type: Application
    Filed: September 2, 2009
    Publication date: October 7, 2010
    Inventors: Tomoyuki Sato, Masashi Suganuma, Tomonori Karasawa, Shoji Kanai, Akira Matsumoto
  • Patent number: 7712512
    Abstract: A method for manufacturing a composite metal material combined with a nanocarbon material comprises heating a metal alloy to a half-melted state in which both liquid and solid phases are present. Next, a nongraphitized nanocarbon material is added to the half-melted metal alloy and stirred to form a composite metal material combined with a nanocarbon.
    Type: Grant
    Filed: June 16, 2007
    Date of Patent: May 11, 2010
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Masashi Suganuma, Tomoyuki Sato, Atsushi Kato
  • Publication number: 20100068089
    Abstract: A method for manufacturing a composite metal alloy from a carbon nanomaterial and a metal material is disclosed. The carbon nanomaterial and the metal material are mixed, and a mixture is obtained. Afterwards, the mixture is dissolved. In the dissolving step, the carbon nanomaterial moves through the melt while adhering to the metal material.
    Type: Application
    Filed: September 18, 2008
    Publication date: March 18, 2010
    Inventors: Atsushi Kato, Tomoyuki Sato, Kelta Arai, Daisuke Shiba, Masashi Suganuma
  • Publication number: 20100064851
    Abstract: A method for kneading a carbon nanomaterial with a metal material and manufacturing a composite-metal-forming material. A semi-molten metal material obtained by heating the metal material to a temperature of a region where a solid and a liquid are both present is kneaded with the carbon nanomaterial, and the composite metal material is obtained. The composite metal material is heated to the solution temperature of the metal material, and a solution treatment is performed, whereby the composite-metal-forming material is obtained.
    Type: Application
    Filed: September 18, 2008
    Publication date: March 18, 2010
    Inventors: Taku Kawano, Tomoyuki Sato, Atsushi Kato, Masashi Suganuma, Keita Arai, Daisuke Shiba
  • Publication number: 20090288519
    Abstract: A method of manufacturing a metal-carbon nanocomposite material in which aluminum is used as the matrix is disclosed. The manufacturing method comprises mixing a Si-coated carbon nanomaterial (30) and a powdered Mg material (33), heating the mixture to a melting point of the Mg material or higher, and thereafter cooling the mixture to obtain an Mg-carbon nanomaterial (34). A metal-carbon nanomaterial in which Al is used as the matrix is provided by cooling the Mg-carbon nanomaterial and molten Al (40) in a mixed state.
    Type: Application
    Filed: April 24, 2008
    Publication date: November 26, 2009
    Inventors: Keita Arai, Atsushi Kato, Masashi Suganuma
  • Patent number: 7462388
    Abstract: The present invention relates to a conductive resin molded product having an insulating skin produced by a composite comprising a non-conductive resin and conductive material. The invention also provides a method for producing the conductive resin molded product.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: December 9, 2008
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Atsushi Koide, Yoshitoshi Yamagiwa, Masashi Suganuma, Yoshihiko Takahashi
  • Publication number: 20080159906
    Abstract: A method for manufacturing a composite metal material combined with a nanocarbon material comprises heating a metal alloy to a half-melted state in which both liquid and solid phases are present. Next, a nongraphitized nanocarbon material is added to the half-melted metal alloy and stirred to form a composite metal material combined with a nanocarbon.
    Type: Application
    Filed: June 16, 2007
    Publication date: July 3, 2008
    Inventors: Masashi Suganuma, Tomoyuki Sato, Atsushi Kato