Patents by Inventor Yoshimitsu Oda

Yoshimitsu Oda 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: 20140178755
    Abstract: A negative-electrode terminal for a cell in which separation between a first metal layer and a second metal layer hardly takes place is provided by suppressing excess formation of an intermetallic compound on a bond interface between the first metal layer and the second metal layer. This negative-electrode terminal for a cell includes a clad portion formed by bonding a first metal layer made of Al or an Al alloy and a second metal layer containing Ni and Cu and consisting of one or a plurality of layers to each other. The first metal layer includes a connected region connected with a cell terminal connecting plate and a stacked region adjacent to the connected region on the side of the same surface, while the second metal layer is bonded to the first metal layer in the stacked region and configured to be connectable to cell negative electrodes of cells.
    Type: Application
    Filed: August 1, 2012
    Publication date: June 26, 2014
    Applicants: HITACHI METALS, LTD., NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaaki Ishio
  • Publication number: 20140099543
    Abstract: A negative electrode terminal for a battery in which a first metal layer and a second metal layer hardly separate from each other is provided by inhibiting an intermetallic compound from being formed between the first metal layer and the second metal layer. This negative electrode terminal (8) for a battery is composed of a clad material formed by bonding a first metal layer (80), made of Al, including a first region connected with a battery terminal connecting plate and an adjacent second region on the same surface side as the first region and a second metal layer (81), made of Ni, connected with battery negative electrodes, while the second metal layer is arranged to be stacked on the first metal layer in the second region of the first metal layer.
    Type: Application
    Filed: May 31, 2012
    Publication date: April 10, 2014
    Applicants: HITACHI METALS, LTD., NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaaki Ishio
  • Publication number: 20140011074
    Abstract: The present invention relates to a lithium ion battery employed by connecting the positive electrode side to a negative electrode portion made of Cu or a Cu alloy by a bus bar made of Al or an Al alloy and provides a negative electrode terminal for a lithium ion battery capable of providing sufficient bonding strength between the negative electrode portion and the bus bar when the negative electrode portion and the bus bar are metallurgically bonded to each other by resistance welding or the like, for example. This negative electrode terminal for a lithium ion battery is made of a clad material having a first metal layer made of Al or an Al alloy and a second metal layer made of Cu or a Cu alloy bonded to each other through a reaction-suppressing layer suppressing a reaction therebetween.
    Type: Application
    Filed: September 13, 2013
    Publication date: January 9, 2014
    Applicants: HITACHI METALS, LTD., NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaaki Ishio, Yasuto Nozawa
  • Publication number: 20130316217
    Abstract: A connection plate for battery terminals capable of inhibiting a base and a battery terminal connection portion from being detached from each other is provided.
    Type: Application
    Filed: December 7, 2011
    Publication date: November 28, 2013
    Applicant: NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaharu Yamamoto, Masaaki Ishio
  • Publication number: 20130309919
    Abstract: A connection plate for battery terminals capable of inhibiting a first member and a second member from being detached from each other is provided. This bus bar 2 (connection plate for battery terminals) includes a first member (3) including a first hole (30) and an embedding hole (31), made of first metal and a second member (4) having a second hole (42), including a base (40) made of second metal, embedded in the embedding hole of the first member, while an intermetallic compound layer (5) containing at least one of the first metal and the second metal is formed on an interface between the embedding hole of the first member and the second member.
    Type: Application
    Filed: January 19, 2012
    Publication date: November 21, 2013
    Applicant: NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaharu Yamamoto, Masaaki Ishio
  • Publication number: 20130071686
    Abstract: An aluminum copper clad material has excellent bonding strength and includes an aluminum layer and a copper layer that are bonded without a nickel layer interposed therebetween. The aluminum layer and the copper layer that are diffusion-bonded via an Al—Cu intermetallic compound layer. The copper layer satisfies Dcs?0.5×Dcc, where Dcc represents the average crystal grain size of crystal grains in a central portion in the thickness direction of the copper layer, and Dcs represents the average crystal grain size of an interface adjacent portion C2 in the copper layer that is about 0.5 ?m apart from the interface between the copper layer and the intermetallic compound layer. The intermetallic compound layer has an average thickness of about 0.5 ?m to about 10 ?m.
    Type: Application
    Filed: June 2, 2011
    Publication date: March 21, 2013
    Inventors: Yoshimitsu Oda, Masaaki Ishio, Akio Hashimoto, Kenji Ikeuchi
  • Publication number: 20120292294
    Abstract: A cladding material for a lead capable of inhibiting foreign matter from remaining on a surface can be obtained. The cladding material (1) is a cladding material for a lead welded to a terminal (21, 22) of a battery (2) and comprises a first Ni layer (11) arranged on a side welded to the terminal of said battery, a second Ni layer (12) arranged on a side opposite to said welded side and an Fe layer (10) arranged to be held between said first Ni layer and said second Ni layer. The thickness of the first Ni layer is at least 2.1% and not more than 8.2% of the thickness of said cladding material consisting of the first Ni layer, the second Ni layer and the Fe layer.
    Type: Application
    Filed: August 2, 2012
    Publication date: November 22, 2012
    Applicant: NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaaki Ishio
  • Publication number: 20120077056
    Abstract: A high-temperature bimetal capable of being inhibited from considerably shifting from an original position when the temperature has fallen to an ordinary temperature is provided. This high-temperature bimetal (1) includes a high thermal expansion layer (2) made of austenitic stainless steel and a low thermal expansion layer (3) made of a thermosensitive magnetic metal having a Curie point and bonded to the high thermal expansion layer. The high-temperature bimetal is employed over both a high temperature range of not less than the Curie point and a low temperature range of less than the Curie point, while an upper limit of operating temperatures in the high temperature range of not less than the Curie point is at least 500° C.
    Type: Application
    Filed: May 21, 2010
    Publication date: March 29, 2012
    Applicant: NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaaki Ishio
  • Publication number: 20120058360
    Abstract: A clad plate includes an aluminum plate and a hard metal plate such as a copper plate, joined together at side end surfaces thereof, the clad plate being excellent in joint strength and flexural separation-resistant characteristics. A side end surface of an aluminum plate and a side end surface of a hard metal plate are jointed together via a nickel layer by pressure welding. A ridge and a groove formed in the side end surface of the aluminum plate are respectively engaged and joined, via the nickel layer, to a groove and a ridge formed in the side end surface of the hard metal plate, and an end portion of the nickel layer extends beyond the rear end portion of the side end surface of the aluminum plate and is jointed to the plate surface of the aluminum plate with the end portion exposed thereon. The average width W of the exposed portion of the nickel layer exposed on the plate surface is preferably in the range from about 0.2 mm to about 1.5 mm.
    Type: Application
    Filed: January 8, 2010
    Publication date: March 8, 2012
    Applicant: NEOMAX MATERIALS CO., LTD.
    Inventors: Yoshimitsu Oda, Masaaki Ishio, Toshiaki Fujita
  • Patent number: 8029916
    Abstract: A brazing filler metal capable of improving both of oxidation resistance and corrosion resistance is obtained. This brazing filler metal (1, 1d, 51 and 51a) consists of at least a three-layer structure of an Ni—Cr brazing layer (2 and 2a) consisting of an Ni—Cr alloy layer, a Ti brazing layer (3, 3a, 3b, 3c and 3d) consisting of a Ti layer or a Ti alloy layer and an Ni brazing layer (4, 4a, 4b, 4c and 4d) consisting of an Ni layer or an N alloy layer arranged between the Ni—Cr brazing layer and the Ti brazing layer.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: October 4, 2011
    Assignee: Neomax Materials Co., Ltd.
    Inventors: Tsuyoshi Hasegawa, Masaaki Ishio, Yoshimitsu Oda
  • Publication number: 20070224445
    Abstract: A brazing filler metal capable of improving both of oxidation resistance and corrosion resistance is obtained. This brazing filler metal (1, 1d, 51 and 51a) consists of at least a three-layer structure of an Ni—Cr brazing layer (2 and 2a) consisting of an Ni—Cr alloy layer, a Ti brazing layer (3, 3a, 3b, 3c and 3d) consisting of a Ti layer or a Ti alloy layer and an Ni brazing layer (4, 4a, 4b, 4c and 4d) consisting of an Ni layer or an N alloy layer arranged between the Ni—Cr brazing layer and the Ti brazing layer.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 27, 2007
    Applicant: NEOMAX MATERIALS CO., LTD.
    Inventors: Tsuyoshi Hasegawa, Masaaki Ishio, Yoshimitsu Oda