Patents by Inventor Tomoyoshi Tsurufuji

Tomoyoshi Tsurufuji 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: 5647162
    Abstract: The invention concerns a fishing rod in which a fishline is passed through the inside thereof. In the fishing rod, one of front and rear rod pipes to be connected together is provided with an enlarged diameter portion for receiving an outer periphery of the other rod pipe. Such enlarged diameter portion reduces a difference between the inside diameters of the front and rear rod pipes, to thereby eliminate the possibility that the fishline can be abutted against the end portion of the rod pipes. Thus, the frictional resistance of the fishline can be decreased, so that the fishline can be smoothly drawn into and out of the rod pipes.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: July 15, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Masaru Akiba, Masayuki Nakagawa, Tomoyoshi Tsurufuji, Shunji Sunaga, Koichi Ito
  • Patent number: 5638870
    Abstract: A tubular body made of thermoplastic resin as the matrix of the body. The tubular body is formed from a woven fabric and sheet assembly including woven fabrics each having reinforcing fibers and thermoplastic fibers interwoven with the woven fabric, and a uniformly oriented or paralleled fiber sheet made of fiber bundles which include reinforcing fibers and thermoplastic resin fibers mixed with the reinforcing fibers. Since the assembly does not become sticky at the room temperature and is wound onto a core without heating process, the assembly can be formed into a desired tubular form with ease.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: June 17, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Nobuhiro Takada, Tomoyoshi Tsurufuji
  • Patent number: 5606819
    Abstract: A reel leg fixing device is made up of a tubular main body 3 provided with a first reel leg receive portion 2 and fittable loosely onto a rod 1, a support portion 4 disposed on one side portion of the tubular main body 3 and extended in the longitudinal direction of the rod 1, a partially cylindrical engaging receive portion 6' fitted loosely onto the rod 1, and a fastening tubular member 8' fitted loosely onto the rod 1, provided with a second reel leg receive portion 7 and fittable with the engaging receive portion 6'. The fastening tubular member 8' is designed to fasten the engaging receive portion 6' onto the rod 1 to adjust the fixing position of the reel leg and to fix the reel leg to the rod positively.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: March 4, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Takafumi Ozeki, Masaru Akiba, Shuichi Kimura, Nobuo Nodera, Tomoyoshi Tsurufuji
  • Patent number: 5598657
    Abstract: The invention relates to a line introduction portion for an inter-line fishing rod. A line introducing hole is located within a range between a point distanced forward about 1/3 of the entire rod length L from the bottom end of the rod tube and another point distanced rearward about 1/3 of the entire rod length from the tip top. When a plurality of interline fishing rod is manufactured as series, the locations where the line introducing holes of the fishing rods of the soft type, the forward-bent type, the long type, and the small standard weight type are formed are respectively set closer to the butts of the fishing rods than those of the line introducing holes of the fishing rods of the hard bending type, the forward-bent type, the short type, and the large standard weight type. Series of inter-line fishing rods with easy handling and increased casting distance can be provided.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: February 4, 1997
    Assignee: Daiwa Seiko, Inc.
    Inventors: Masaru Akiba, Shuichi Kimura, Koichi Ito, Tomoyoshi Tsurufuji
  • Patent number: 5588244
    Abstract: The invention provides a fishing rod with a pre-inserted fishing line guide member which can reduce the resistance of a fishing line during casting and reeling operations. Thereby an operator is able to play out and draw in the fishing line smoothly. In the fishing rod, the whole periphery of the inner surface of a fishing line guide cylinder is mounted on the leading end portion of a fishing rod pipe. The line guide is enlarged in diameter more greatly than the inner periphery contour of the leading end portion of the fishing rod pipe when the latter is extended in the direction of the axis of the rod pipe. The lower inner surface of the fishing line guide cylinder is downwardly shifted with respect to the fishing rod end pipe and enlarged in diameter more greatly than the oppositely located and upwardly enlarged diameter of the upper inner surface with respect to the axis of the fishing rod.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: December 31, 1996
    Assignee: Daiwa Seiko, Inc.
    Inventors: Masaru Akiba, Tomoyoshi Tsurufuji
  • Patent number: 5564214
    Abstract: An inter-line fishing rod which can hold annular fishline guide members positively on the inner surface of a rod tube. The inter-line fishing rod includes annular fishline guide members (30) respectively mounted on the inner surface of a rod tube (12) formed of fiber reinforced synthetic resin. The fishing rod is arranged such that minute projections (36) are provided on the outer periphery of the fishline guide members (30) facing the inner surface (12S) of the rod tube (12), and the minute projections (36) are pressed against the rod tube inner surface (12S).
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: October 15, 1996
    Assignee: Daiwa Seiko, Inc.
    Inventor: Tomoyoshi Tsurufuji
  • Patent number: 5537773
    Abstract: The present disclosure concerns a fishing rod handle which, when holding the fishing rod at a position forward of its normal holding position (e.g. between the reel and the tip of the fishing rod), allows the fishing rod to be held stably, thereby improving the ability to manipulate the fishing rod. The handle includes a reel leg mounting portion 18 which locates the legs 14A,14B of a reel 14 on a reel leg placement surface 18B and fixes the reel legs 14A,14B with front and rear hoods 12A,12B. The reel leg mounting portion further includes a reduced portion 18C diametrically opposite the reel leg placement surface 18B. An expanded portion 22 is located between the reduced portion 18C and a constricted portion 20C, and swells generally oppositely from the reel leg placement surface 18B. The extended portion 22 is contoured and sized so as to be readily and comfortably received in the palm of an angler's hand.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: July 23, 1996
    Assignee: Daiwa Seiko, Inc.
    Inventors: Teiji Matsubara, Tomoyoshi Tsurufuji
  • Patent number: 5392556
    Abstract: A reel leg fixing device is made up of a tubular main body 3 provided with a first reel leg receive portion 2 and fittable loosely onto a rod 1, a support portion 4 disposed on one side portion of the tubular main body 3 and extended in the longitudinal direction of the rod 1, a partially cylindrical engaging receive portion 6' fitted loosely onto the rod 1, and a fastening tubular member 8' fitted loosely onto the rod 1, provided with a second reel leg receive portion 7 and fittable with the engaging receive portion 6'. The fastening tubular member 8' is designed to fasten the engaging receive portion 6' onto the rod 1 to adjust the fixing position of the reel leg and to fix the reel leg to the rod positively.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: February 28, 1995
    Assignee: Daiwa Seiko, Inc.
    Inventors: Takafumi Ozeki, Masaru Akiba, Shuichi Kimura, Nobuo Nodera, Tomoyoshi Tsurufuji
  • Patent number: 5337507
    Abstract: A handle for fishing rod extends on the tubular body 10 of the fishing rod, and includes a hand-held portion 16 corresponding to the exposed part 10P of the tubular body and having bridges extending off the exposed part along the side surfaces thereof. The handle is reduced in weight, it is easy for a fishing person to hold the handle by his hand, the hand holding the handle is less likely to slip thereon, and the person can feel the bite of a fish well.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: August 16, 1994
    Assignee: Daiwa Seiko, Inc.
    Inventors: Mitsuyoshi Oyama, Tomoyoshi Tsurufuji