Patents by Inventor Tomoyuki Hatano

Tomoyuki Hatano 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: 20050072550
    Abstract: A casting method and casting mold able to easily produce a casting having an island and connecting portion at a high quality. A casting (1) having a body (11), an opening (12) provided so as to pass through the body, an island (121) arranged separated from the body in the opening, and a connecting portion (22) joining the island and body is cast using a casting mold (2). The casting mold is provided with a body gate (311) connected to a body cavity for forming the body and an opening gate (321) connected to an island/connecting portion cavity (32) for forming the island and the connecting portion.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 7, 2005
    Inventors: Takeshi Nagasaka, Tomoyuki Hatano, Hiromi Takagi, Ikuo Ozawa, Yasushi Hibi, Minoru Furuhata, Koji Tsuboe, Isao Uenaka
  • Patent number: 6708790
    Abstract: A front-end structure comprising a panel body (400) to which a center member (500), being fixed to a body of a vehicle at a front end of the vehicle and supporting, at least, a driving engine (E/G), is joined, wherein the panel body (400) is molded out of aluminum by die-casting and a joining section (421) of the panel body (400) to which the center member (500) is joined has a mechanical strength higher than that of any other sections of the panel body (400) near the joining section (421) except the joining section (421).
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: March 23, 2004
    Assignee: Denso Corporation
    Inventors: Ikuo Ozawa, Toshiki Sugiyama, Norihisa Sasano, Noriaki Maeda, Kazuaki Kafuku, Harumi Okai, Yasuhiko Itou, Tomoyuki Hatano, Hiromi Takagi, Takeshi Nagasaka, Yasushi Hibi
  • Publication number: 20030041995
    Abstract: A casting method and casting mold able to easily produce a casting having an island and connecting portion at a high quality. A casting (1) having a body (11), a opening (12) provided so as to pass through the body, an island (121) arranged separated from the body in the opening, and a connecting portion (22) joining the island and body is cast using a casting mold (2). The casting mold is provided with a body gate (311) connected to a body cavity for forming the body and a opening gate (321) connected to an island/connecting portion cavity (32) for forming the island and the connecting portion. The body gate and opening gate are connected to a runner (33) through body pin gates (312) and opening pin gates (322).
    Type: Application
    Filed: July 3, 2002
    Publication date: March 6, 2003
    Inventors: Takeshi Nagasaka, Tomoyuki Hatano, Hiromi Takagi, Ikuo Ozawa, Yasushi Hibi, Minoru Furuhata, Koji Tsuboe
  • Publication number: 20020162695
    Abstract: The present invention provides a front-end structure comprising a panel body (400) to which a center member (500), being fixed to a body of a vehicle at a front end of the vehicle and supporting, at least, a driving engine (E/G), is joined, wherein the panel body (400) is molded out of aluminum by die-casting and a joining section (421) of the panel body (400) to which the center member (500) is joined has a mechanical strength higher than that of any other sections of the panel body (400) near the joining section (421) except the joining section (421).
    Type: Application
    Filed: April 25, 2002
    Publication date: November 7, 2002
    Inventors: Ikuo Ozawa, Toshiki Sugiyama, Norihisa Sasano, Noriaki Maeda, Kazuaki Kafuku, Harumi Okai, Yasuhiko Itou, Tomoyuki Hatano, Hiromi Takagi, Takeshi Nagasaka, Yasushi Hibi
  • Patent number: 6451246
    Abstract: A molten metal vessel includes a first chamber for containing molten metal such as molten aluminum therein, a filtration chamber in which impurities contained in the molten metal are removed, and a second chamber for reserving clean molten metal to be supplied to a casting die. The molten metal flows from the first chamber to the second chamber through the filtration chamber. A pair of filters, preferably a pair of cylindrical filters, are disposed in the filtration chamber, so that the impurities contained in the molten metal can be filtered twice. The filters are attached to the bottom of the filtration chamber where molten metal oxides hardly develop, so that the filters are easily replaced with new ones for the maintenance purpose. A rod-shaped heater may be disposed in the cylindrical filters to keep the molten metal temperature in a strictly controlled range. Thus, the impurities are effectively removed from the molten metal through the filters which are easily replaceable.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: September 17, 2002
    Assignee: Denso Corporation
    Inventors: Tomoyuki Hatano, Takeshi Nagasaka, Hiromi Takagi, Sumi Yoshikawa, Shunji Moohizuki
  • Patent number: 6335309
    Abstract: Die release lubricant is made from powder solid lubricant, adhesion enhancer made of organic or inorganic compound and volatile solvent. Before melted metal is injected into a die for casting, the die release lubricant is sprayed to an inside surface of the die. The die release lubricant is in a liquid state and is uniformly applied to the inside surface of the die. As a result, application efficiency of the die release lubricant is improved while an amount of thermal decomposition gas generated during casting is reduced.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: January 1, 2002
    Assignees: Denso Corporation, Nippon Graphite Industries Co., Ltd.
    Inventors: Hiromi Takagi, Tomoyuki Hatano, Tadao Okura
  • Patent number: 6290900
    Abstract: A molten metal vessel includes a first chamber for containing molten metal such as molten aluminum therein, a filtration chamber in which impurities contained in the molten metal are removed, and a second chamber for reserving clean molten metal to be supplied to a casting die. The molten metal flows from the first chamber to the second chamber through the filtration chamber. A pair of filters, preferably a pair of cylindrical filters, are disposed in the filtration chamber, so that the impurities contained in the molten metal can be filtered twice. The filters are attached to the bottom of the filtration chamber where molten metal oxides hardly develop, so that the filters are easily replaced with new ones for the maintenance purpose. A rod-shaped heater may be disposed in the cylindrical filters to keep the molten metal temperature in a strictly controlled range. Thus, the impurities are effectively removed from the molten metal through the filters which are easily replaceable.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: September 18, 2001
    Assignee: Denso Corporation
    Inventors: Tomoyuki Hatano, Takeshi Nagasaka, Hiromi Takagi, Sumi Yoshikawa, Shunji Mochizuki
  • Publication number: 20010020759
    Abstract: A molten metal vessel includes a first chamber for containing molten metal such as molten aluminum therein, a filtration chamber in which impurities contained in the molten metal are removed, and a second chamber for reserving clean molten metal to be supplied to a casting die. The molten metal flows from the first chamber to the second chamber through the filtration chamber. A pair of filters, preferably a pair of cylindrical filters, are disposed in the filtration chamber, so that the impurities contained in the molten metal can be filtered twice. The filters are attached to the bottom of the filtration chamber where molten metal oxides hardly develop, so that the filters are easily replaced with new ones for the maintenance purpose. A rod-shaped heater may be disposed in the cylindrical filters to keep the molten metal temperature in a strictly controlled range. Thus, the impurities are effectively removed from the molten metal through the filters which are easily replaceable.
    Type: Application
    Filed: April 24, 2001
    Publication date: September 13, 2001
    Inventors: Tomoyuki Hatano, Takeshi Nagasaka, Hiromi Takagi, Sumi Yoshikawa, Shunji Moohizuki