Patents by Inventor Shoichi Koganei

Shoichi Koganei 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).

  • Intra-line fishing rod
    Patent number: 6543178
    Abstract: In an intra-line fishing rod, a rod tube comprises a synthetic resin as a matrix, and is reinforced by reinforced fibers. A guide is formed integrally with and projects from an inner surface of the rod tube. A cushioning portion is formed between the guide and a body layer of the rod tube which is composed predominantly of axially-extending fibers, and cushioning portions are formed respectively at front and rear sides of the guide connected to the inner surface of the rod tube. The cushioning portions are smaller in bending modulus than a bulge portion region of the guide for contact with a fishline, and the inner surface is formed with a mirror-like smoothness.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: April 8, 2003
    Assignee: Daiwa Seiko, Inc.
    Inventors: Shunji Sunaga, Shoichi Koganei, Masaru Akiba, Tomoyoshi Tsurufuji, Yutaka Kurano, Toyoaki Takimoto, Toshihiro Kurokawa
  • Intra-line fishing rod
    Patent number: 6408562
    Abstract: In an intra-line fishing rod, a rod tube comprises a synthetic resin as a matrix, and is reinforced by reinforced fibers. A guide is formed integrally with and projects from an inner surface of the rod tube. A cushioning portion is formed between the guide and a body layer of the rod tube which is composed predominantly of axially-extending fibers, and cushioning portions are formed respectively at front and rear sides of the guide connected to the inner surface of the rod tube. The cushioning portions are smaller in bending modulus than a bulge portion region of the guide for contact with a fishline, and the inner surface is formed with a mirror-like smoothness.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: June 25, 2002
    Assignee: Daiwa Seiko, Inc.
    Inventors: Shunji Sunaga, Shoichi Koganei, Masaru Akiba, Tomoyoshi Tsurufuji, Yutaka Kurano, Toyoaki Takimoto, Toshihiro Kurokawa
  • Intra-line fishing rod
    Publication number: 20020023380
    Abstract: In an intra-line fishing rod, a rod tube comprises a synthetic resin as a matrix, and is reinforced by reinforced fibers. A guide is formed integrally with and projects from an inner surface of the rod tube.
    Type: Application
    Filed: October 23, 2001
    Publication date: February 28, 2002
    Applicant: DAIWA SEIKO, INC.
    Inventors: Shunji Sunaga, Shoichi Koganei, Masaru Akiba, Tomoyoshi Tsurufuji, Yutaka Kurano, Toyoaki Takimoto, Toshihiro Kurokawa
  • Interline fishing rod
    Patent number: 6233862
    Abstract: An interline fishing rod which not only prevents stress centralization but also includes a fishing line guide and is high in strength. A rod pipe (12) includes a joining portion (12T) in the leading end portion thereof, a forwardly narrowed taper portion (12S) located just in the rear of the joining portion (12T), and a straight or forwardly narrowed and gently tapered rod pipe main body portion (12H) located in the rear of the taper portion (12S). A fishing line guide (RG2) is provided on and protected from the inside wall of the rod pipe main body portion (12H), while the inside diameter (d2) of the fishing line guide (RG2) is set larger than the inside diameters (d0) and (d4). Reinforcing layers (H1, H2) for reinforcing a main body layer are provided in such a manner that it extends from the joining portion (12T) to at least the front-most position of the fishing line guide (RG2).
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: May 22, 2001
    Assignee: NGB Corporation
    Inventors: Tomoyoshi Tsurufuji, Shoichi Koganei, Eiji Sugaya, Hiroshi Hashimoto, Masaru Akiba, Futoshi Nishikawa, Hiroyasu Suzue, Isao Ohta
  • Interline fishing rod
    Patent number: 6108959
    Abstract: An interline fishing rod which not only prevents stress centralization but also includes a fishing line guide and is high in strength. A rod pipe (12) includes a joining portion (12T) in the leading end portion thereof, a forwardly narrowed taper portion (12S) located just in the rear of the joining portion (12T), and a straight or forwardly narrowed and gently tapered rod pipe main body portion (12H) located in the rear of the taper portion (12S). A fishing line guide (RG2) is provided on and projected from the inside wall of the rod pipe main body portion (12H), while the inside diameter (d2) of the fishing line guide (RG2) is set larger than the inside diameters (d0) and (d4). Reinforcing layers (H1, H2) for reinforcing a main body layer are provided in such a manner that it extends from the joining portion (12T) to at least the front-most position of the fishing line guide (RG2).
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: August 29, 2000
    Assignee: Daiwa Seiko, Inc.
    Inventors: Tomoyoshi Tsurufuji, Shoichi Koganei, Eiji Sugaya, Hiroshi Hashimoto, Masaru Akiba, Futoshi Nishikawa, Hiroyasu Suzue, Isao Ohta