Patents by Inventor Hidetoshi Yamamoto

Hidetoshi Yamamoto 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: 20060028303
    Abstract: A noise filter includes a laminate body including magnetic layers, line conductors and ground conductors, with one line conductor and one ground conductor alternately arranged in interfaces between the magnetic layers. With an electrical signal applied to the line conductors with the ground conductors grounded, a high-frequency noise is attenuated using a magnetic loss of the magnetic layer.
    Type: Application
    Filed: October 7, 2005
    Publication date: February 9, 2006
    Inventors: Katsuyuki Uchida, Hidetoshi Yamamoto, Takashi Kodama, Kazuhiko Takenaka, Takehiko Otsuki
  • Patent number: 6971604
    Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease. For attaining these problems, there is provided a magnetic tape cartridge comprising a magnetic tape cartridge comprising; an opening provided on one side wall of a cartridge case, and is used for tape drawing; a slide door slidably supported by a guide part disposed along said one side wall, and said slide door is used for achieving the shutting-and-opening operation of said opening; a spring member for impelling said slide door to the shutting direction side, and is placed on said guide part; and a leading part for leading one end part of said spring member to a spring engaging part provided on said slide door, and is provided at one end part of said spring member.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: December 6, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kouta Kitamura, Hideaki Shiga, Hidetoshi Yamamoto
  • Patent number: 6959888
    Abstract: The object of the invention is to provide a magnetic tape cartridge, in which a release pad can be assembled securely by a robot. A magnetic tape cartridge including: a reel around which a magnetic tape is wound; a cartridge case which houses the reel in a locked position; a release pad for releasing locking of the reel; and a cup-like hub of the reel in which the release pad is mounted, wherein a plurality of guide holes for allowing a plurality of lock release pins to penetrate therein, which extend from the lower surface of the release pad, are made in the periphery of a base plate of the cup-like hub, and a plurality of pairs of guide ribs, which are capable of guiding the plurality of lock release pins to the plurality of guide holes, stand inside the cup-like hub corresponding to the plurality of guide holes.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: November 1, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Tsuyuki, Yusuke Ishihara, Yasushi Hatano, Hidetoshi Yamamoto
  • Patent number: 6954335
    Abstract: A magnetic tape cartridge comprises: a reel 2 around which a magnetic tape MT is wound; a cartridge case 1 for accommodating the reel 2 in a locked state; and a release pad 5 inserted into a cup-shaped hub 2A of the reel 2 in a locked state of the reel 2. The release pad 5 includes a pad body 5A having a plurality of corners to be faced proximately to the inner peripheral surface 2C of the cup-shaped hub 2A, and a plurality of lock releasing pins 5B projecting downwardly from a bottom surface of the pad body 5A at the respective corners and inserted through a bottom surface of the cup-shaped hub 2A. The release pad 5 is provided with a flank 5E extending from each corner downwardly through the respective lock release pin 5B so that an assembling clearance is formed with respect to an inner periphery of a flange 2G position in an open side of the cup-shaped hub 2A.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: October 11, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Tsuyuki, Hidetoshi Yamamoto, Hideaki Shiga, Naoki Okutsu
  • Patent number: 6948674
    Abstract: A tape cartridge is characterized by being provided with an opening to pull out a tape formed at a corner of a cartridge case; a curved door to open/close the opening; a slide mechanism to slide the door for the cartridge case; a door-side spring hooking portion formed at an end of said door; a case-side spring hooking portion formed on a bottom surface of the cartridge case; a coiled spring which is attached across the door-side spring hooking portion and case-side spring hooking portion, and energizes the door so as to close; and a regulation portion which is provided on one surface of the door, in which one end of a coiled spring is trial-fitted on a door-side spring hooking portion, and which is composed so as to regulate a position of the coiled spring when the coiled spring is pressed on one surface of the door.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: September 27, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hidetoshi Yamamoto
  • Publication number: 20050127223
    Abstract: 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: Application
    Filed: September 30, 2004
    Publication date: June 16, 2005
    Inventors: Kenji Ishikawa, Hidetoshi Yamamoto, Kiyoo Morita, Akihiro Hashimoto, Daisuke Takahashi, Hideaki Shiga
  • Patent number: 6898843
    Abstract: 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: Grant
    Filed: October 2, 2003
    Date of Patent: May 31, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidetoshi Yamamoto, Kenji Ishikawa, Yusuke Ishihara, Naoki Okutsu
  • Patent number: 6896217
    Abstract: 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: Grant
    Filed: July 6, 2000
    Date of Patent: May 24, 2005
    Inventors: Kenji Ishikawa, Hidetoshi Yamamoto, Kiyoo Morita, Akihiro Hashimoto, Daisuke Takahashi, Hideaki Shiga
  • Publication number: 20050066509
    Abstract: The object of the invention is to provide a magnetic tape cartridge, in which a release pad can be assembled securely by a robot. A magnetic tape cartridge including: a reel around which a magnetic tape is wound; a cartridge case which houses the reel in a locked position; a release pad for releasing locking of the reel; and a cup-like hub of the reel in which the release pad is mounted, wherein a plurality of guide holes for allowing a plurality of lock release pins to penetrate therein, which extend from the lower surface of the release pad, are made in the periphery of a base plate of the cup-like hub, and a plurality of pairs of guide ribs, which are capable of guiding the plurality of lock release pins to the plurality of guide holes, stand inside the cup-like hub corresponding to the plurality of guide holes.
    Type: Application
    Filed: November 19, 2004
    Publication date: March 31, 2005
    Inventors: Seiji Tsuyuki, Yusuke Ishihara, Yasushi Hatano, Hidetoshi Yamamoto
  • Patent number: 6857593
    Abstract: 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: Grant
    Filed: June 3, 2002
    Date of Patent: February 22, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidetoshi Yamamoto, Kenji Ishikawa, Yusuke Ishihara, Naoki Okutsu
  • Patent number: 6851169
    Abstract: The object of the invention is to provide a magnetic tape cartridge, in which a release pad can be assembled securely by a robot. A magnetic tape cartridge including: a reel around which a magnetic tape is wound; a cartridge case which houses the reel in a locked position; a release pad for releasing locking of the reel; and a cup-like hub of the reel in which the release pad is mounted, wherein a plurality of guide holes for allowing a plurality of lock release pins to penetrate therein, which extend from the lower surface of the release pad, are made in the periphery of a base plate of the cup-like hub, and a plurality of pairs of guide ribs, which are capable of guiding the plurality of lock release pins to the plurality of guide holes, stand inside the cup-like hub corresponding to the plurality of guide holes.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: February 8, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Tsuyuki, Yusuke Ishihara, Yasushi Hatano, Hidetoshi Yamamoto
  • Patent number: 6846299
    Abstract: Method for a continuous recirculating peritoneal dialysis wherein the peritoneal dialysis fluid is infused into a peritoneal cavity of a patient and then, typically on a continuous process basis a portion of the dialysis fluid is sequentially drained from the cavity, cleansed through an extracorpreal dialyzer, and reinfused into the cavity. The dialysis fluid contains as an osmotic agent a substance which does not substantially permeate through pores of hollow fiber membrane of an extracorporeal dialyzer, preferably an osmotic agent having a molecular weight of about 20,000 to about 100,000. The supplemented amount of the osmotic agent is reduced or not needed during the dialysis.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: January 25, 2005
    Assignee: Nipro Corporation
    Inventors: Toshiaki Masuda, Hidetoshi Yamamoto
  • Publication number: 20050006514
    Abstract: A magnetic tape cartridge is provided, in which the mating of the lower half and the upper half can be easily performed and which is applicable to automated assembly, when the magnetic tape cartridge having a sliding door is assembled. The rib projects from the upper section of the first guide wall in the direction of the opposite second guide wall. On the other hands the groove, which faces the rib, is carved on the inner side surface of the sliding door. The rib engages with the groove, thereby restricting the vertical displacement of the sliding door. Also, the engagement of the rib and the groove guides the sliding door in the guide channel freely.
    Type: Application
    Filed: August 6, 2004
    Publication date: January 13, 2005
    Inventors: Yasushi Hatano, Hidetoshi Yamamoto, Hideaki Shiga, Kouta Kitamura, Seiji Tsuyuki, Yusuke Ishihara
  • Patent number: 6804880
    Abstract: An assembly apparatus that may easily conform to increase in production volume and change in specifications of parts, and exhibits high production efficiency is provided. The assembly apparatus 1 includes a part-supplying station 2 in which an operator 8 supplies parts to a conveyor pallet 5, a part-assembling station 3 in which assembly robots R1, R2 assemble the parts in the conveyor pallet 5, and a conveyor means 4 that conveys the conveyor pallet 5 from the part-supplying station 2 to the part-assembling station 3. After the assembly robots R1 have finished assembling the parts on one conveyor pallet 5 in a work area A1, the conveyor means 4 conveys the one conveyor pallet 5 from the work area A1, and concurrently conveys the next conveyor pallet 5 following the one conveyor pallet 5 in the work area A1.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: October 19, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hidetoshi Yamamoto
  • Patent number: 6806794
    Abstract: A noise filter includes a plurality of magnetic sheets stacked one on another. The magnetic sheets are baked to form a layered product. A transmission line is arranged between the second and third magnetic sheets. The transmission line extends linearly in the longitudinal direction of the layered product. Two ground conductors have the second and third magnetic sheets therebetween. Signal electrodes connected to both ends of the transmission line are arranged adjacent to both ends, in the longitudinal direction, of the layered product. Grounding electrodes connected to the ground conductors are arranged in the middle positions, in the longitudinal direction, of the layered product. With the ground conductors being grounded, a signal passes through the transmission line, thus attenuating high-frequency noise using heat dissipation by the four magnetic sheets.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: October 19, 2004
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hidetoshi Yamamoto, Katsuyuki Uchida, Kousuke Ishida, Haruhiko Ueno
  • Publication number: 20040195415
    Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease.
    Type: Application
    Filed: April 13, 2004
    Publication date: October 7, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Kouta Kitamura, Hideaki Shiga, Hidetoshi Yamamoto
  • Publication number: 20040195416
    Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease.
    Type: Application
    Filed: April 13, 2004
    Publication date: October 7, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Kouta Kitamura, Hideaki Shiga, Hidetoshi Yamamoto
  • Publication number: 20040190182
    Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease.
    Type: Application
    Filed: April 13, 2004
    Publication date: September 30, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Kouta Kitamura, Hideaki Shiga, Hidetoshi Yamamoto
  • Patent number: 6796521
    Abstract: A magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease. For attaining these problems, there is provided a magnetic tape cartridge comprising a magnetic tape cartridge comprising; an opening provided on one side wall of a cartridge case, and is used for tape drawing; a slide door slidably supported by a guide part disposed along said one side wall, and said slide door is used achieving the shutting-and-opening operation of said opening; spring member for impelling said slide door to the shutting direction side, and tape drawing; placed on said guide part; and a leading part for leading one end part of said spring member to a spring engaging part provided on said slide door, and is provided at one end part of said spring member.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: September 28, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kouta Kitamura, Hideaki Shiga, Hidetoshi Yamamoto
  • Patent number: 6779242
    Abstract: A magnetic tape cartridge is provided, in which the mating of the lower half and the upper half can be easily performed and which is applicable to automated assembly, when the magnetic tape cartridge having a sliding door is assembled. The rib projects from the upper section of the first guide wall in the direction of the opposite second guide wall. On the other hand, the groove, which faces the rib, is carved on the inner side surface of the sliding door. The rib engages with the groove, thereby restricting the vertical displacement of the sliding door. Also, the engagement of the rib and the groove guides the sliding door in the guide channel freely.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: August 24, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Hatano, Hidetoshi Yamamoto, Hideaki Shiga, Kouta Kitamura, Seiji Tsuyuki, Yusuke Ishihara