Patents by Inventor Masafumi Fujimoto

Masafumi Fujimoto 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: 9822787
    Abstract: A dynamic pressure bearing apparatus includes a bearing portion, a shaft, a radial dynamic pressure bearing portion, and a seal gap. An annular member arranged in an annular shape, fixed to the shaft axially between the seal portion and the attachment surface, and arranged to extend radially outward beyond an opening of the seal gap. A minute horizontal gap extending radially is defined between an upper surface of the bearing portion and a lower surface of the annular member. The seal gap is arranged to be in communication with an exterior space through the horizontal gap.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: November 21, 2017
    Assignee: NIDEC CORPORATION
    Inventors: Tomotsugu Sugiyama, Teiichi Hirono, Shinichiro Noda, Akihiro Kimura, Yoshiharu Ikegami, Tomohiro Hasegawa, Masafumi Fujimoto, Tomohiro Yoneda
  • Publication number: 20160169242
    Abstract: A dynamic pressure bearing apparatus includes a bearing portion, a shaft, a radial dynamic pressure bearing portion, and a seal gap. An annular member arranged in an annular shape, fixed to the shaft axially between the seal portion and the attachment surface, and arranged to extend radially outward beyond an opening of the seal gap. A minute horizontal gap extending radially is defined between an upper surface of the bearing portion and a lower surface of the annular member. The seal gap is arranged to be in communication with an exterior space through the horizontal gap.
    Type: Application
    Filed: February 24, 2016
    Publication date: June 16, 2016
    Applicant: NIDEC CORPORATION
    Inventors: Tomotsugu Sugiyama, Teiichi Hirono, Shinichiro Noda, Akihiro Kimura, Yoshiharu Ikegami, Tomohiro Hasegawa, Masafumi Fujimoto, Tomohiro Yoneda
  • Patent number: 9303653
    Abstract: A dynamic pressure bearing apparatus includes a bearing portion; a shaft; a substantially annular bushing; a radial dynamic pressure bearing portion; and a seal gap. A minute horizontal gap extending radially is defined between an upper surface of the bearing portion and a lower surface of the bushing. The seal gap is arranged to be in communication with an exterior space through the horizontal gap.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: April 5, 2016
    Assignee: NIDEC CORPORATION
    Inventors: Tomotsugu Sugiyama, Teiichi Hirono, Shinichiro Noda, Akihiro Kimura, Yoshiharu Ikegami, Tomohiro Hasegawa, Masafumi Fujimoto, Tomohiro Yoneda
  • Publication number: 20150030481
    Abstract: A dynamic pressure bearing apparatus includes a bearing portion; a shaft; a substantially annular bushing; a radial dynamic pressure bearing portion; and a seal gap. A minute horizontal gap extending radially is defined between an upper surface of the bearing portion and a lower surface of the bushing. The seal gap is arranged to be in communication with an exterior space through the horizontal gap.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Applicant: NIDEC CORPORATION
    Inventors: Tomotsugu Sugiyama, Teiichi Hirono, Shinichiro Noda, Akihiro Kimura, Yoshiharu Ikegami, Tomohiro Hasegawa, Masafumi Fujimoto, Tomohiro Yoneda
  • FAN
    Publication number: 20130004347
    Abstract: A fan includes a motor and an impeller. The motor includes a stationary portion and a rotating portion. The stationary portion includes a stator and a bearing portion. The bearing portion includes a sleeve and a bearing housing. The rotating portion includes a rotor magnet, a shaft, and a thrust plate. A radial gap includes a radial dynamic pressure bearing portion arranged to generate a fluid dynamic pressure acting axially downward on a lubricating oil, while a thrust gap includes a thrust dynamic pressure bearing portion arranged to generate a fluid dynamic pressure acting radially inward on the lubricating oil. A circulation hole extending in an axial direction is defined between the bearing housing and the sleeve. The radial gap is arranged to have a radial width in a range of about 5 ?m to about 20 ?m.
    Type: Application
    Filed: June 13, 2012
    Publication date: January 3, 2013
    Applicant: NIDEC CORPORATION
    Inventors: Teiichi Hirono, Tomohiro Hasegawa, Shinichiro Noda, Yoshiharu Ikegami, Masafumi Fujimoto
  • Publication number: 20130004348
    Abstract: A dynamic pressure bearing apparatus includes a bearing portion; a shaft; a substantially annular bushing; a radial dynamic pressure bearing portion; and a seal gap. A minute horizontal gap extending radially is defined between an upper surface of the bearing portion and a lower surface of the bushing. The seal gap is arranged to be in communication with an exterior space through the horizontal gap.
    Type: Application
    Filed: June 14, 2012
    Publication date: January 3, 2013
    Applicant: NIDEC CORPORATION
    Inventors: Tomotsugu Sugiyama, Teiichi Hirono, Shinichiro Noda, Akihiro Kimura, Yoshiharu Ikegami, Tomohiro Hasegawa, Masafumi Fujimoto, Tomohiro Yoneda
  • Patent number: 6571535
    Abstract: A container-forming device comprises a container conveyor (21) having a plurality of holders (34) which each include a bottom plate (51) and side plates (52) projecting upwardly from the bottom plate for receiving the container body M1 and intermittently drivable so as to halt the holders (34) at an ear bonding station (S3) in succession, and upper ear pressing member (61) disposed above the ear bonding station (S3) and being moveable upward or downward for pressing upper ears (U1) against an upper wall of a container body (M1), and a pair of lower ear pressing members (62) arranged at opposite sides of the ear bonding station (S3) and being openable or closable for pressing lower ears (L1) against respective side walls of the container body (M1).
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: June 3, 2003
    Assignee: Shikoku Kakoki Co., Ltd.
    Inventors: Seiji Sato, Masafumi Fujimoto, Kiyomi Yoshida, Michio Ueda
  • Patent number: 6481561
    Abstract: A container feeder for feeding pillowlike uncompleted containers C1 each having a container body M1 and upper and lower ears U1, L1 projecting laterally from upper and lower ends of the container body to a conveyor 21 of a container forming device 14 for forming the uncompleted container C1 into a rectangular parallelepipedal completed container C2 comprises a slanting chute 101 having a lower end positioned at a starting end of a conveyor transport path, a first receiving member 134 so disposed as to be movable upward or downward along a chute transport path, the first receiving member 134 being movable into the chute transport path when moving downward to receive the lower end of the container body M1 of the container C1 falling along the chute 101 under gravity, and a second receiving member 144 so disposed as to be movable upward or downward along the chute transport path, the second receiving member 144 being movable into the chute transport path when moving downward to receive the upper ears U1 of the c
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: November 19, 2002
    Assignee: Shikoku Kakoki Co., Ltd.
    Inventors: Hidekimi Yamamoto, Hiroshi Katayama, Masafumi Fujimoto, Kiyomi Yoshida, Michio Ueda
  • Publication number: 20010030106
    Abstract: A container feeder for feeding pillowlike uncompleted containers C1 each having a container body M1 and upper and lower ears U1, L1 projecting laterally from upper and lower ends of the container body to a conveyor 21 of a container forming device 14 for forming the uncompleted container C1 into a rectangular parallelepipedal completed container C2 comprises a slanting chute 101 having a lower end positioned at a starting end of a conveyor transport path, a first receiving member 134 so disposed as to be movable upward or downward along a chute transport path, the first receiving member 134 being movable into the chute transport path when moving downward to receive the lower end of the container body M1 of the container C1 falling along the chute 101 under gravity, and a second receiving member 144 so disposed as to be movable upward or downward along the chute transport path, the second receiving member 144 being movable into the chute transport path when moving downward to receive the upper ears U1 of the c
    Type: Application
    Filed: April 13, 2001
    Publication date: October 18, 2001
    Applicant: SHIKOKU KAKOKI CO., LTD.
    Inventors: Hidekimi Yamamoto, Hiroshi Katayama, Masafumi Fujimoto, Kiyomi Yoshida, Michio Ueda
  • Publication number: 20010029721
    Abstract: A container forming device comprises a container conveyor 21 having a plurality of holders 34 and intermittently drivable so as to halt the holders 34 at an ear bonding station S3 in succession, an upper ear pressing member 61 disposed above the ear bonding station S3 so as to be movable upward or downward for pressing upper ears U1 against an upper wall of a container body M1, and a pair of lower ear pressing members 62 arranged at opposite sides of the ear bonding station S3 so as to be openable or closable for pressing lower ears L1 against respective side walls of the container body M1. Each of the holders 34 comprises a bottom plate 51 extending in parallel to a container transport path, and a side plate 52 projecting upward from the bottom plate 51 and extending orthogonal to the container transport path.
    Type: Application
    Filed: April 13, 2001
    Publication date: October 18, 2001
    Applicant: SHIKOKU KAKOKI CO., LTD.
    Inventors: Seiji Sato, Masafumi Fujimoto, Kiyomi Yoshida, Michio Ueda
  • Patent number: 5992131
    Abstract: There is provided a superhigh-speed filling and packaging apparatus having a high performance capable of manufacturing more than 8,000 packs per hour without leaving fluid at sealed parts of the containers. The filling and packaging apparatus fills a packaging material web formed in a tubular shape with fluid to manufacture package containers. The apparatus includes a lateral sealing apparatus for laterally sealing the tubular web filled with the fluid at intervals, each corresponding to one container, and a cutting apparatus, disposed under and remote from the lateral sealing apparatus, for cutting sealed parts of the containers while the containers are suspended to separate the containers.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: November 30, 1999
    Assignee: Shikoku Kakoki Co., Ltd.
    Inventors: Fumiyuki Iwano, Hiroshi Katayama, Tetsuya Iuchi, Masafumi Fujimoto, Michio Ueda
  • Patent number: 5248807
    Abstract: The present invention provides triterpene derivatives of the following formula: ##STR1## wherein, R.sup.1 is hydrogen or metabolic ester-residue; R.sup.3 is optionally substituted aryl or optionally substituted aromatic heterocycle; X is hydrogen and Y is hydroxy or X and Y may form together oxo; Z is an oxygen or two hydrogen atoms, or the salts thereof, which have anti-endothelin activities and are useful for preventing or treating cardiovascular failure, and pharmaceutical compositions thereof.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: September 28, 1993
    Assignee: Shionogi & Co., Ltd.
    Inventors: Masafumi Fujimoto, Kensuke Sakurai, Shinichi Mihara, Miharu Nakamura, Toshiro Konoike
  • Patent number: 5034987
    Abstract: A target is continuously observed and stereoscopic three-dimensional image information of the target is recorded. A transmitter unit irradiates a target with suitable radiation, an image recording unit records radiation images of the target, a rotating unit incrementally positions the target between the transmitting and image recording units, injecting means places a contrast material into the target, a memory stores a first set of reference images of the target for predetermined number of angular increments prior to injection of said contrast material and stores second set of contrast images for each angular increment of rotation of the target after injection of the contrast material, an arithmetic unit produces a set of drawn or subtractive images of the target from the stored reference and contrast image data, and an indicator unit displays two drawn images of the target that are separated by a certain angular difference so that the two images can be viewed in three dimension using a stereo-scope.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: July 23, 1991
    Assignee: Nippon Identograph Co., Ltd.
    Inventors: Masafumi Fujimoto, Shigeru Minakami, Takuya Haneda