Patents by Inventor Kenji Ishikawa
Kenji Ishikawa 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).
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Patent number: 7077352Abstract: A magnetic tape cartridge with an improved reel-rotation restraining mechanism is disclosed. The reel-rotation restraining mechanism has a reel locking member, which is movable toward and away from the reel, for restricting rotation thereof; an urging member for urging the reel locking member in a restraining direction; and an releasing member, which is rotatable integrally with the reel, for moving the reel locking member in an unlocking direction by moving according to a chucking operation of a rotation drive mechanism of a drive unit. The releasing member has three leg portions on the vertexes of a triangular plate portion insertable into through holes in the reel. The releasing member is sized so that with part of the releasing member inserted into a center opening of the reel, and two of the three leg portions positioned near the through holes, the remaining one leg portion can be dropped and inserted within the center opening.Type: GrantFiled: September 30, 2004Date of Patent: July 18, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Ishikawa, Hidetoshi Yamamoto, Kiyoo Morita, Akihiro Hashimoto, Daisuke Takahashi, Hideaki Shiga
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Publication number: 20060131119Abstract: In a spring sheet structure of a hydraulic shock absorber having a sheet rubber seated on a spring sheet and supporting a spring through the sheet rubber, an end coil portion of the spring is stored in the sheet rubber, the spring sheet includes a movement restraint unit for restraining a movement of the sheet rubber, the sheet rubber includes an abutment unit corresponding to the movement restraint unit of the spring sheet, and the abutment unit of the sheet rubber is engaged with the movement restraint unit of the spring sheet while the sheet rubber is seated on a flat sheet surface provided in a circumferential direction of the spring sheet, thereby restraining a movement of the spring relative to the spring sheet.Type: ApplicationFiled: September 8, 2005Publication date: June 22, 2006Applicant: Showa CorporationInventor: Kenji Ishikawa
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Publication number: 20060075628Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.Type: ApplicationFiled: November 17, 2005Publication date: April 13, 2006Inventors: Hidetoshi Yamamoto, Kenji Ishikawa, Yusuke Ishihara, Naoki Okutsu
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Patent number: 6936333Abstract: A bulky sheet comprising a fiber aggregate formed by water needling of a fiber web is disclosed. The bulky sheet has a number of projections and depressions comprising the fiber aggregate. The projections and the depressions is formed both by rearrangement of the constituting fibers of the fiber aggregate by water needling of the fiber aggregate and by the multiple bending manner of the fiber aggregate along the thickness direction thereof. The projections and the depressions retains the shape thereof by themselves.Type: GrantFiled: February 13, 2001Date of Patent: August 30, 2005Assignee: Kao CorporationInventors: Akihito Shizuno, Kenji Ishikawa, Kouji Machii, Hiromichi Suzuki
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Publication number: 20050136218Abstract: A bulky sheet comprising a fiber aggregate formed by water needling of a fiber web is disclosed. The bulky sheet has a number of projections and depressions comprising the fiber aggregate. The projections and the depressions is formed both by rearrangement of the constituting fibers of the fiber aggregate by water needling of the fiber aggregate and by the multiple bending manner of the fiber aggregate along the thickness direction thereof. The projections and the depressions retains the shape thereof by themselves.Type: ApplicationFiled: February 8, 2005Publication date: June 23, 2005Applicant: KAO CORPORATIONInventors: Akihito Shizuno, Kenji Ishikawa, Kouji Machii, Hiromichi Suzuki
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Publication number: 20050127223Abstract: A magnetic tape cartridge with an improved reel-rotation restraining mechanism is disclosed. The reel-rotation restraining mechanism has a reel locking member, which is movable toward and away from the reel, for restricting rotation thereof; an urging member for urging the reel locking member in a restraining direction; and an releasing member, which is rotatable integrally with the reel, for moving the reel locking member in an unlocking direction by moving according to a chucking operation of a rotation drive mechanism of a drive unit. The releasing member has three leg portions on the vertexes of a triangular plate portion insertable into through holes in the reel. The releasing member is sized so that with part of the releasing member inserted into a center opening of the reel, and two of the three leg portions positioned near the through holes, the remaining one leg portion can be dropped and inserted within the center opening.Type: ApplicationFiled: September 30, 2004Publication date: June 16, 2005Inventors: Kenji Ishikawa, Hidetoshi Yamamoto, Kiyoo Morita, Akihiro Hashimoto, Daisuke Takahashi, Hideaki Shiga
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Patent number: 6898843Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The cartridge having an assembly support device that guides a distal end of a spring support rod onto a support rod receiving block when the slide door is fitted in a lower half of the cartridge case. A proximal end of the spring support rod projects from the slide door, and a compression coil spring is wound around the spring support rod.Type: GrantFiled: October 2, 2003Date of Patent: May 31, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Yamamoto, Kenji Ishikawa, Yusuke Ishihara, Naoki Okutsu
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Patent number: 6896217Abstract: A magnetic tape cartridge with an improved reel-rotation restraining mechanism is disclosed. The reel-rotation restraining mechanism has a reel locking member, which is movable toward and away from the reel, for restricting rotation thereof; an urging member for urging the reel locking member in a restraining direction; and an releasing member, which is rotatable integrally with the reel, for moving the reel locking member in an unlocking direction by moving according to a chucking operation of a rotation drive mechanism of a drive unit. The releasing member has three leg portions on the vertexes of a triangular plate portion insertable into through holes in the reel. The releasing member is sized so that with part of the releasing member inserted into a center opening of the reel, and two of the three leg portions positioned near the through holes, the remaining one leg portion can be dropped and inserted within the center opening.Type: GrantFiled: July 6, 2000Date of Patent: May 24, 2005Inventors: Kenji Ishikawa, Hidetoshi Yamamoto, Kiyoo Morita, Akihiro Hashimoto, Daisuke Takahashi, Hideaki Shiga
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Patent number: 6891183Abstract: An ultrasonic-welding apparatus including: a cradle, onto which two work pieces are mounted, and which can rotate around an axis vertical to the welding surface of the work pieces; a welding horn, which carries out welding using ultrasonic energy while sandwiching the two work pieces between it and the cradle; a transmission-type laser sensor which measures the fixed part of the work pieces after welding, rotating on the cradle, in the condition that the welding horn is apart from the work pieces after welding; and an optical sensor including a light-emitting part, a light-receiving part, a connecting part on which the light-emitting and light-receiving parts are mounted, and an adjusting part that rotates the connecting part around two axes.Type: GrantFiled: June 6, 2003Date of Patent: May 10, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Kouta Kitamura, Tadashi Takahara, Kenji Ishikawa, Novuo Takahashi
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Patent number: 6857593Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.Type: GrantFiled: June 3, 2002Date of Patent: February 22, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Yamamoto, Kenji Ishikawa, Yusuke Ishihara, Naoki Okutsu
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Patent number: 6768128Abstract: To provide the ultrasonic-welding apparatus, which can attain the above-mentioned requirement, and which can automatically achieve both measurement of the face-deflection the work piece after welding and the welding of work pieces, such as a reel for a magnetic tape, there is provided an ultrasonic-welding apparatus comprising; a cradle, onto which two work pieces of to be welded and welded to are mounted in piles, and which can rotate around the axis vertical to the welding surface of the work piece of to be welded; a welding hone, which carries out welding using a supersonic in the condition of having sandwiched the two work pieces between the cradle; and a transmission-type laser sensor which measures the fixed part of the work pieces after welding by irradiation of the laser light which runs parallel to the welding surface, and the transmission-type laser sensor measures the fixed part of the work piece after welding, which is rotating on the cradle, in the condition that the welding hone is apart from thType: GrantFiled: June 6, 2003Date of Patent: July 27, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Kouta Kitamura, Tadashi Takahara, Kenji Ishikawa, Novuo Takahashi
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Patent number: 6750446Abstract: An ultrasonic-welding apparatus, which can automatically achieve measurement of the face-deflection the work piece after welding and during the welding of work pieces, such as a reel for a magnetic tape. The ultrasonic-welding apparatus includes: a cradle, onto which two types of work pieces to be welded are mounted in piles, and which can rotate around an axis vertical to the welding surface of a workpiece to be welded; a welding horn, which carries out welding using ultrasonic vibration wherein the two work pieces are sandwiched by the cradle; and a transmission-type laser sensor which measures the fixed part of the work pieces, after welding, by the irradiation of laser light which runs parallel to the welding surface, wherein the workpieces are rotating on the cradle and the welding horn is apart from the work pieces.Type: GrantFiled: January 16, 2002Date of Patent: June 15, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Kouta Kitamura, Tadashi Takahara, Kenji Ishikawa, Novuo Takahashi
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Publication number: 20040069888Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.Type: ApplicationFiled: October 2, 2003Publication date: April 15, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Hidetoshi Yamamoto, Kenji Ishikawa, Yusuke Ishihara, Naoki Okutsu
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Publication number: 20040070879Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.Type: ApplicationFiled: October 2, 2003Publication date: April 15, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Hidetoshi Yamamoto, Kenji Ishikawa, Yusuke Ishihara, Naoki Okutsu
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Publication number: 20040051032Abstract: To provide the ultrasonic-welding apparatus, which can attain the above-mentioned requirement, and which can automatically achieve both measurement of the face-deflection the work piece after welding and the welding of work pieces, such as a reel for a magnetic tape.Type: ApplicationFiled: June 6, 2003Publication date: March 18, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Kouta Kitamura, Tadashi Takahara, Kenji Ishikawa, Novuo Takahashi
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Publication number: 20030205684Abstract: To provide the ultrasonic-welding apparatus, which can attain the above-mentioned requirement, and which can automatically achieve both measurement of the face-deflection the work piece after welding and the welding of work pieces, such as a reel for a magnetic tape.Type: ApplicationFiled: June 6, 2003Publication date: November 6, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Kouta Kitamura, Tadashi Takahara, Kenji Ishikawa, Novuo Takahashi
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Publication number: 20030045197Abstract: A floor cleaning sheet (1) impregnated with an aqueous detergent is used as attached to a cleaning part (11) of a cleaning tool (10) having a handle (12) of stick form connected to the cleaning part (11). The surface layer of the floor cleaning sheet (1) which is to be brought into contact with a floor comprises nonwoven fabric formed by fiber entanglement of a fiber web and has a static friction resistance of 900 to 2500 cN against #1200-grit sandpaper.Type: ApplicationFiled: June 24, 2002Publication date: March 6, 2003Inventors: Shusuke Kakiuchi, Kenji Ishikawa, Taeko Hayase, Hiroyuki Akai
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Publication number: 20030008108Abstract: A bulky sheet comprising a fiber aggregate formed by water needling of a fiber web is disclosed. The bulky sheet has a number of projections and depressions comprising the fiber aggregate. The projections and the depressions is formed both by rearrangement of the constituting fibers of the fiber aggregate by water needling of the fiber aggregate and by the multiple bending manner of the fiber aggregate along the thickness direction thereof. The projections and the depressions retains the shape thereof by themselves.Type: ApplicationFiled: September 27, 2001Publication date: January 9, 2003Inventors: Akihito Shizuno, Kenji Ishikawa, Kouji Machii, Hiromichi Suzuki
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Publication number: 20020179764Abstract: A magnetic tape cartridge includes an opening 1C through which a magnetic tape is drawn out, and a slide door 6 that slides along a sidewall 1D provided with the opening 1C to open and close the opening 1C. The opening 1C is provided in part of the sidewall 1D across a lower half 1A and an upper half 1B of the cartridge case 1. At least one of a lower half portion and an upper half portion of the sidewall is provided with a holding groove 1L that receives a front end portion 6A of the slide door 6 when the opening is closed. Therefore, the upper half 1B and the lower half 1A of the magnetic tape cartridge may be smoothly combined.Type: ApplicationFiled: June 3, 2002Publication date: December 5, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Hidetoshi Yamamoto, Kenji Ishikawa, Yusuke Ishihara, Naoki Okutsu
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Patent number: 6482180Abstract: The present invention provides an intravascular catheter comprising a catheter part; an internal needle disposed through the catheter part; and a flexible resin member disposed on the outer surface of the catheter part. It is preferable that the intravascular catheter comprises a blood leakage prevention member for preventing leakage of blood by closing the catheter part via the flexible resin member. It is also preferable that the blood leakage prevention member comprises a pressure part capable of pressuring the catheter part via the flexible resin member. It is further preferable that the blood leakage prevention member comprises a fixing mechanism capable of fixing the pressure part in the pressuring state, and a releasing mechanism capable of releasing the pressuring state.Type: GrantFiled: February 6, 2001Date of Patent: November 19, 2002Assignee: Terumo Kabushiki KaishaInventors: Yoshihide Toyokawa, Kenji Ishikawa, Toshiya Asai