Patents Assigned to Daiwa Seiko, Inc.
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Patent number: 6634958Abstract: A golf club includes a shaft and a head fixed to a forward end of the shaft. The said head has a recess formed in an upper surface of the head. The recess is not made to adhere to an outer circumferential surface of the shaft.Type: GrantFiled: January 22, 1999Date of Patent: October 21, 2003Assignee: Daiwa Seiko, Inc.Inventor: Harunobu Kusumoto
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Patent number: 6626385Abstract: The invention is to offer a spinning reel for fishing, in which a handle can be replaced left and right, and an offset amount of a spool shaft and a handle shaft is reduced without lowering strength of these shafts, so that transmitting efficiency of rotating torque from a drive gear to a pinion gear can be heightened and a reel main body can be miniaturized. In the spinning reel for fishing, a part of the handle shaft crossing with the spool shaft is formed as a small diameter portion determined to have a smaller diameter than those of other parts of the handle shaft, and a part of the handle which is connected to the handle shaft is less to extend within the handle shaft to traverse the crossing portion of the spool shaft and the handle shaft.Type: GrantFiled: August 1, 2002Date of Patent: September 30, 2003Assignee: Daiwa Seiko, Inc.Inventor: Wataru Tsutsumi
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Publication number: 20030146320Abstract: An outer-side holding member (5) of a braking device (A) is fitted to the inner side of a large-diameter recessed portion (2g) in a rear portion of the inner side of a fishing-line winding barrel portion (2h) of a spool (2) in such a manner as to be prevented from rotating, and is prevented from coming off. An adjusting member 8 is provided at a distal end portion of the spool shaft for adjusting braking force of the braking device by relatively displacing an outer-side holding member (5) and the inner-side holding member (7) of the braking device in an axial direction.Type: ApplicationFiled: August 29, 2002Publication date: August 7, 2003Applicant: DAIWA SEIKO, INC.Inventor: Nobuyuki Yamaguchi
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Patent number: 6601334Abstract: A fishing rod with which, even when fishing large fish or fish demonstrating strong tugs, fishing can be performed comfortably even if the angler's physical strength is small. The fishing rod is arranged such that a portion of the fishing rod ranging from a portion close to a butt portion of the fishing rod to a rod tip is formed by a solid rod having a region where a fiber-reinforced plastic prepreg in which reinforced fibers are stretched and arranged mainly in one direction is wound around and integrated with a surface of a solid member using a resin as a matrix and reinforced mainly by reinforced fibers generally oriented in an axial direction, in such a manner that a direction of the reinforced fibers of the prepreg is generally oriented in the axial direction.Type: GrantFiled: November 21, 2000Date of Patent: August 5, 2003Assignee: Daiwa Seiko, Inc.Inventors: Hiroyuki Ono, Yoshihiro Naeki, Teiji Matsubara, Hiroshi Oda
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Patent number: 6598818Abstract: An outer periphery of the other side of a rotating shaft (2a) of a rotating member (2) is pivotally supported via a hollow cylindrical portion (3a) of a gear (3) by a waterproof bearing (11) fitted in a reel body (1), while an outer periphery of one side of the rotating shaft (2a) of the rotating member (2) is pivotally supported by a waterproof bearing (12) fitted on a cover (10). A drive gear (2b) is integrally formed on the outer periphery of the rotating shaft (2a) on the one side thereof, while a noncircular detent portion (b), which is formed by a collar portion (2c) and a pair of notches (2d) provided on both sides thereof, a circular supporting portion (a), and a circumferential groove (2e) are formed on the outer periphery of the rotating shaft (2a) on the other side thereof. A resilient member (13) constituted by an 0-ring is fitted in the circumferential groove (2e).Type: GrantFiled: October 23, 2001Date of Patent: July 29, 2003Assignee: Daiwa Seiko, Inc.Inventor: Wataru Tsutsumi
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Publication number: 20030114245Abstract: A weight piece (14) containing 15 wt. % or greater of iron and tungsten, and having a specific gravity of 9 or larger, larger than a material of a head body (10) made of steel or pure iron, is joined to the head body (10) by welding.Type: ApplicationFiled: December 16, 2002Publication date: June 19, 2003Applicant: Daiwa Seiko, Inc.Inventors: Harunobu Kusumoto, Takeshi Kasai, Atsushi Iijima, Hitoshi Tamura
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Patent number: 6561033Abstract: A line length measuring device for a fishing reel in which the spool diameter data is obtained on the basis of the time for which an ultrasonic wave is radiated from the ultrasonic sensor mounted on a reel main body onto a spool face of the spool and its reflected wave is received by the ultrasonic sensor, and the line length is measured from the spool diameter data and the number of rotations of the spool detected by rotational number detecting means and displayed. A velocity measuring device is provided for detecting a velocity of the ultrasonic wave radiated from the ultrasonic sensor, in which the spool diameter data is acquired on the basis of the velocity of ultrasonic wave measured by the velocity measuring means.Type: GrantFiled: October 24, 2001Date of Patent: May 13, 2003Assignee: Daiwa Seiko, Inc.Inventors: Kazuya Nanbu, Makoto Chiba
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Publication number: 20030075631Abstract: An outer periphery of the other side of a rotating shaft 2a of a rotating member 2 is pivotally supported via a hollow cylindrical portion 3a of a gear 3 by a waterproof bearing 11 fitted in a reel body 1, while an outer periphery of one side of the rotating shaft 2a of the rotating member 2 is pivotally supported by a waterproof bearing 12 fitted on a cover 10. A drive gear 2b is integrally formed on the outer periphery of the rotating shaft 2a on the one side thereof, while a noncircular detent portion b, which is formed by a collar portion 2c and a pair of notches 2d provided on both sides thereof, a circular supporting portion a, and a circumferential groove 2e are formed on the outer periphery of the rotating shaft 2a on the other side thereof. A resilient member 13 constituted by an O-ring is fitted in the circumferential groove 2e.Type: ApplicationFiled: October 23, 2001Publication date: April 24, 2003Applicant: DAIWA SEIKO, INC.Inventor: Wataru Tsutsumi
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Patent number: 6543178Abstract: 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: GrantFiled: October 23, 2001Date of Patent: April 8, 2003Assignee: Daiwa Seiko, Inc.Inventors: Shunji Sunaga, Shoichi Koganei, Masaru Akiba, Tomoyoshi Tsurufuji, Yutaka Kurano, Toyoaki Takimoto, Toshihiro Kurokawa
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Patent number: 6533202Abstract: A component member of a fishing reel incorporating a body constituted by a Mg alloy; and a corrosion prevented layer formed on the body by a high-voltage anodization process or a body constituted by a Mg alloy; a corrosion prevented layer formed on the body by a high-voltage anodization process or conversion treatment; and a sealing layer which is formed on the corrosion prevented layer by an impregnating process and which is free from any change in the dimension thereof.Type: GrantFiled: May 1, 2000Date of Patent: March 18, 2003Assignee: Daiwa Seiko, Inc.Inventor: Mamoru Koike
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Patent number: 6533201Abstract: In a double bearing type reel, an attaching member to be attached onto the inside or outside of a side plate is fastened by one screw from the inside of a bearing, to thereby enhance the work efficiency and beauty.Type: GrantFiled: January 28, 2000Date of Patent: March 18, 2003Assignee: Daiwa Seiko, Inc.Inventors: Takeo Miyazaki, Shinichi Asano, Tomohiro Murayama
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Patent number: 6530535Abstract: A hollow (3h) and a plurality of grooves (3j) are formed in a support portion (3g) of a side frame (3). A collar (8) is fit to the support portion in a state that it is axially movable but it is locked in its rotation. Gaps (a, b) are provided within the hollow (3h), while being positioned a distance apart in the axial direction of the collar (8). Elastic rings (29) and (30) each made of felt or soft rubber are placed within the gaps (a, b), respectively. A rotary member (15) and an inner ring (39) are fit to the handle drive shaft (7), and an adjusting member (40) is screw coupled to the handle drive shaft (7). An outer ring (9) of a one-way clutch (D) of a rolling type is inserted and fixed to a tubular portion (8a) of the collar (8). A holder (41) and bar-like rolling members (42) are disposed within the outer ring (9) of the one-way clutch (D).Type: GrantFiled: March 16, 2001Date of Patent: March 11, 2003Assignee: Daiwa Seiko, Inc.Inventors: Harumichi Oishi, Masashi Ono
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Publication number: 20030038200Abstract: A belt and pulleys are used as a power transmitting unit in a fishing reel for avoiding uncomfortable vibration or noises while fishing. A spool motor is supported in a motor receiving case provided at front and lower parts between both side frames, and a toothed pulley 21 is urged in the other side of a rotating shaft and is made detent. Another toothed pulley is fitted in a detent portion of a spool shaft by an E-ring, and a toothed belt is expanded between the toothed pulley and the other toothed pulley.Type: ApplicationFiled: August 27, 2002Publication date: February 27, 2003Applicant: DAIWA SEIKO, INC.Inventor: Makoto Chiba
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Patent number: 6524195Abstract: A tubular body comprises: rolled layers of prepreg formed of reinforcing fibers impregnated with synthetic resin, wherein a ratio of impregnation of synthetic resin contained in a skew fiber body layer on which fibers are arranged in a skew direction and also a ratio of impregnation of synthetic resin contained in an axial fiber body layer on which fibers are arranged in an axial direction are in a range from a value approximately not lower than 10 wt % to a value lower than 25 wt %, and a thin layer, the ratio of impregnation of synthetic resin of which is high, is provided between the skew fiber body layer and the axial fiber body layer. The specific strength and specific rigidity of the tubular body are high, and the tubular body is less susceptible to separation and damage of the fibers and layers even if an impact force is given to it.Type: GrantFiled: August 12, 1999Date of Patent: February 25, 2003Assignee: Daiwa Seiko, Inc.Inventor: Harunobu Kusumoto
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Patent number: 6505430Abstract: The invention concerns an intra-line fishing rod which can both reduce the insertion resistance of a fishline and maintain a delicate flexible property. In the intra-line fishing rod with an inserted fishline, the inside diameter of the respective portions (a, b, c) of the top rod portion of the fishing rod is formed in a substantially straight shape having an inclination of {fraction (3/1000)} or less, and reinforcing fibers having different elastic moduli are used in the rod top portions and are sequentially arranged in such a manner not only that the reinforcing fibers extend substantially in the axial direction of the rod top portions but also that the elastic moduli become higher in a geometric series manner from the front portion (a) toward the rear portion (c).Type: GrantFiled: July 9, 1999Date of Patent: January 14, 2003Assignee: Daiwa Seiko Inc.Inventors: Tomoyoshi Tsurufuji, Hiroyuki Ono
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Patent number: 6499683Abstract: In a spinning reel for fishing, there is provided a recess (1c) in the leg section (1b) having the fishing rod attaching section (1a) of the reel body (1), and also there is provided a recess (1d) in the reel body (1). The lever-shaped change-over member (4) and the spring (13) are housed in the recess (1c). The lever-shaped change-over member (4) is pivotally supported by the shaft (14) in such a manner that the lever-shaped change-over member (4) can be displaced. The operating section (4b) of the lever-shaped change-over member (4) is arranged in such a manner that it can be pressed down by a finger of the angler's hand holding the fishing rod (15). The acting section (4c) extending forward in the recess (1d) is made to face the reverse rotation preventive claw (7) of the first reverse rotation preventive device (A), and the reverse rotation preventive claw (7) is made to face the first reverse rotation preventive ratchet (5).Type: GrantFiled: September 1, 2000Date of Patent: December 31, 2002Assignee: Daiwa Seiko, Inc.Inventor: Wataru Tsutsumi
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Publication number: 20020187849Abstract: A golf club head of the present invention. A cast head body 31 is constituted by a hollow outer shell. Said hollow outer shell define a top portion 35, a sole portion 37, a heel wall 45, a toe portion 39 and a face opening portion 33. A shaft securing portion 43 is formed adjacent to the heel wall and extended from the top portion to the sole portion. And a first hollow portion 47 is formed between the shaft securing portion and the heel wall of the head body.Type: ApplicationFiled: August 21, 2002Publication date: December 12, 2002Applicant: DAIWA SEIKO, INC.Inventors: Harunobu Kusumoto, Akinori Sasamoto
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Patent number: D467299Type: GrantFiled: February 27, 2002Date of Patent: December 17, 2002Assignee: Daiwa Seiko, Inc.Inventors: Takashi Kondo, Masatoshi Katayama, Shigeo Mimura, Noriyasu Fukushima
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Patent number: D468795Type: GrantFiled: January 29, 2002Date of Patent: January 14, 2003Assignee: Daiwa Seiko Inc.Inventors: Takashi Kondo, Akio Sekimoto, Masayoshi Ishikawa
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Patent number: D469845Type: GrantFiled: June 15, 2000Date of Patent: February 4, 2003Assignee: Daiwa Seiko, Inc.Inventor: Kaname Yamaguchi