Patents by Inventor Naoki Takahara

Naoki Takahara 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: 20210394491
    Abstract: A laminated glass including two facing glass plates and an interlayer film disposed between the two glass plates. The interlayer film has a resin layer having a storage modulus of 1000 MPa or more at a temperature of 25° C. and a frequency of 1×105 Hz. The laminated glass may be a windshield for an automobile.
    Type: Application
    Filed: November 27, 2019
    Publication date: December 23, 2021
    Inventors: Reimi EMOTO, Tomohiro MIWA, Tomohiro ARAKI, Kyosuke NAKAMURA, Naoki TAKAHARA, Akihiro YOSHIDA, Eisaku ISHIKAWA, Hiroki KUZUOKA, Ryoh TAKAHASHI, Keiichiro NISHIMURA, Yukiko INOUE, Miku KAWAMURA
  • Patent number: 6782864
    Abstract: In a cylinder head of an engine having an intake port communicating with an combustion chamber of the engine, a mount structure for an engine accessory includes an engine accessory, an accessory mount portion provided on the cylinder head and to which the engine accessory is mounted, and a fuel injection device mount portion provided on the cylinder head and to which a fuel injection device for injecting fuel into the intake port is mounted. The accessory mount portion is joined to the fuel injection device mount portion.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: August 31, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kiyoshi Takagi, Yoshiaki Iizuka, Naoki Takahara
  • Patent number: 6644256
    Abstract: A lost motion mechanism that biases a free rocker arm of a lift-amount changing member capable of lifting a valve in a direction to abut against a cam includes a spring accommodated in a support portion. The support portion is a recessed portion integrally formed on a camshaft holder below the free rocker arm. The vertical dimension of an engine is reduced as compared with a case where the support portion is provided above the free rocker arm. A camshaft cap supports the camshaft and a bolt that fastens the camshaft cap to the camshaft holder are not required.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: November 11, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Naoki Takahara, Toshiyuki Sato
  • Patent number: 6615781
    Abstract: An overhead camshaft type valve train includes drive rocker arms interlockingly connected to intake valves (exhaust valves) rockingly supported on a rocker shaft fixed to camholders for rotatably supporting a camshaft, free rocker arms adapted to get free relative to the intake valves (exhaust valves), connection switching mechanisms for switching over the connection and release of connection between the drive rocker arms and the free rocker arms, and lost motion mechanisms for biasing the free rocker arms to a cam side. The respective cam holders are fastened to the cylinder head by pairs of fastening portions with bolts, and holding portions for holding the lost motion mechanisms are formed integrally with the fastening portions.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: September 9, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shigekazu Tanaka, Toshiyuki Sato, Naoki Takahara
  • Publication number: 20030131811
    Abstract: A lost motion mechanism that biases a free rocker arm of a lift-amount changing member capable of lifting a valve in a direction to abut against a cam includes a spring accommodated in a support portion. The support portion is a recessed portion integrally formed on a camshaft holder below the free rocker arm. The vertical dimension of an engine is reduced as compared with a case where the support portion is provided above the free rocker arm. A camshaft cap supports the camshaft and a bolt that fastens the camshaft cap to the camshaft holder are not required.
    Type: Application
    Filed: December 3, 2002
    Publication date: July 17, 2003
    Inventors: Naoki Takahara, Toshiyuki Sato
  • Publication number: 20030041835
    Abstract: In a cylinder head of an engine having an intake port communicating with an combustion chamber of the engine, a mount structure for an engine accessory includes an engine accessory, an accessory mount portion provided on the cylinder head and to which the engine accessory is mounted, and a fuel injection device mount portion provided on the cylinder head and to which a fuel injection device for injecting fuel into the intake port is mounted. The accessory mount portion is joined to the fuel injection device mount portion.
    Type: Application
    Filed: July 9, 2002
    Publication date: March 6, 2003
    Inventors: Kiyoshi Takagi, Yoshiaki Ilzuka, Naoki Takahara
  • Publication number: 20020139336
    Abstract: An overhead camshaft type valve train includes drive rocker arms interlockingly connected to intake valves (exhaust valves) rockingly supported on a rocker shaft fixed to camholders for rotatably supporting a camshaft, free rocker arms adapted to get free relative to the intake valves (exhaust valves), connection switching mechanisms for switching over the connection and release of connection between the drive rocker arms and the free rocker arms, and lost motion mechanisms for biasing the free rocker arms to a cam side. The respective cam holders are fastened to the cylinder head by pairs of fastening portions with bolts, and holding portions for holding the lost motion mechanisms are formed integrally with the fastening portions.
    Type: Application
    Filed: March 27, 2002
    Publication date: October 3, 2002
    Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Shigekazu Tanaka, Toshiyuki Sato, Naoki Takahara
  • Patent number: 6397809
    Abstract: There is provided a balancing device for a four-cycle V-type eight-cylinder engine having a bank gap angle of 90 degrees, characterized by provision on a common rotating shaft (balance shafts 81, 82 as described in the mode for carrying out the invention) a part (an equivalent inertia mass P in the mode for carrying out the invention) for generating a first inertia force for offsetting a residual secondary inertia force from piston systems and a part (equivalent inertia masses VH, VV as described in the mode for carrying out the invention) for generating a second inertia force for offsetting a residual inertia force from valve systems. According to this construction, since balancing devices for piston and valve systems can be integrated into one unit, there is involved no complexity in construction.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: June 4, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takehiko Sayama, Naoki Takahara, Shinichi Murakami, Yasuhiro Yamasaki
  • Patent number: 6244237
    Abstract: A balancer device for a four-cycle V-type eight cylinder engine having a bank included angle of 90 degrees, including: a crankshaft, a cylinder block having an upper block and a lower block divided from a horizontal plane passing through a center of the crankshaft and balancer shafts. Each of the upper and lower blocks defines a bearing hole in such a manner that an axis thereof extends in parallel with the crankshaft, the bearing holes of the upper and lower blocks being located at positions symmetrical with respect to the dividing plane; and balancer shafts supported to the bearing holes.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takehiko Sayama, Naoki Takahara, Yasuhiro Yamasaki
  • Patent number: 5027761
    Abstract: An internal combustion engine includes a cylinder block having a cylinder bore, a cylinder head having a combustion chamber communicating with the cylinder bore, a spark plug supported in the cylinder head and having electrodes disposed in the combustion chamber, two first valves supported on the cylinder head and having valve heads disposed in one side of the combustion chamber, and two second valves supported on the cylinder head and having valve heads disposed in an opposite side of the combustion chamber.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: July 2, 1991
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Noriaki Fujii, Takeshi Iwata, Naoki Takahara
  • Patent number: 4969426
    Abstract: An internal combustion engine includes a cylinder block having a cylinder bore, a cylinder head having a combustion chamber communicating with the cylinder bore, a spark plug supported in the cylinder head and having electrodes disposed in the combustion chamber, two first valves supported on the cylinder head and having valve head disposed in one side of the combustion chamber, and two second valves supported on the cylinder head and having valve heads disposed in an opposite side of the combustion chamber.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: November 13, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Noriaki Fujii, Takeshi Iwata, Naoki Takahara
  • Patent number: 4793297
    Abstract: An internal combustion engine, which includes a cylinder bore having an axis, a cylinder head disposed above the cylinder bore and having a combustion chamber, intake and exhaust valves movably supported in the cylinder head, and a spark plug supported in the cylinder head and having electrodes disposed centrally in the combustion chamber.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: December 27, 1988
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Noriaki Fujii, Takeshi Iwata, Naoki Takahara
  • Patent number: 4762099
    Abstract: In a valve actuating device of four-cycle internal combustion engine, a valve actuating cam shaft for driving an opening and closing valve via a rocker arm is carried on a cam holder block, an adjusting bolt is held on the cam holder block so as to be adjustable relative to its position to the latter and the rocker arm is supported on a pivot portion integral with the adjusting bolt for rocking motion. Valve clearance between the rocker arm and the opening and closing valve is adjusted by displacing the position of adjusting bolt relative to the cam holder block.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: August 9, 1988
    Assignee: Honda Giken Koygo Kabushiki Kaisha
    Inventors: Noriaki Fujii, Takeshi Iwata, Toshihiro Oikawa, Naoki Takahara