Patents Assigned to Fujikin, Inc.
  • Patent number: 8137787
    Abstract: The object of the present invention is to form a chromium-oxide film, excellent in corrosion resistance, without containing an oxide film of other metal onto the metallic material. The chromium-oxide passivation film, excellent in corrosion resistance, without containing the oxide film of other metal can be formed inexpensively and in a short time, and a fluid supplying system for safely supplying fluid with hard corrosivity is able to be provided. One step of forming the passivation film consisting of a chromium oxide layer by giving heat treatment, in an oxidizing atmosphere, after coating chromium on the metallic material having a surface roughness (Ra) not more than 1.5 ?m.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: March 20, 2012
    Assignees: Fujikin, Inc.
    Inventors: Tadahiro Ohmi, Yasuyuki Shirai, Nobukazu Ikeda, Eiji Ideta, Akihiro Morimoto, Tetsutaro Ogushi, Takehisa Konishi
  • Patent number: 8010199
    Abstract: A blood pressure regulating system uses a native regulation rule to estimate at least one nerve activity in response to blood pressure changes, comprising at least one blood pressure sensing means which senses blood pressure and outputs a input blood pressure signal, a calculating means which receives the input blood pressure signal, calculates a transfer function by computing a Fourier transform of a normal blood pressure signal and a normal sympathetic nerve activity from normal cardiovascular system, calculates an impulse response by computing an inverse Fourier transform of the transfer function, calculates a sympathetic nerve stimulation signal using a convolution integral between the input blood pressure signal and the impulse response, and outputs the sympathetic nerve stimulation signal, and a stimulating means which receives the sympathetic nerve stimulation signal, and stimulates the sympathetic nerve innervating vascular beds based on the sympathetic nerve stimulation signal such that blood pressur
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: August 30, 2011
    Assignees: National Cerebral and Cardiovascular Center, Fujikin Inc.
    Inventors: Kenji Sunagawa, Masaru Sugimachi, Takayuki Sato
  • Patent number: 8010195
    Abstract: The present invention provides a cardiac pacing system based on biological activities, comprising: a) at least one nerve activity sensing means which senses nerve activity of a cardiac sympathetic nerve and/or a vagal nerve, and outputs a plurality of input nerve activity signals; b) a calculating means which receives the input nerve activity signals, calculates a transfer function by computing a Fourier transform of normal nerve activity signals and a normal heart rate signal from normal cardiovascular system, calculates an impulse response by computing an inverse Fourier transform of the transfer function, calculates a plurality of pacing signals for control of a heart rate using a convolution integral between the input nerve activity signals and the impulse response, and outputs the pacing signals; and c) a pacing means which receives the pacing signals, and stimulates the heart based on the pacing signals such that heart rate is regulated.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: August 30, 2011
    Assignees: National Cerebral and Cardiovascular Center, Fujikin Inc.
    Inventors: Kenji Sunagawa, Masaru Sugimachi, Takayuki Sato
  • Patent number: 8000791
    Abstract: A distributed cardiac pacing system comprises a first ultra miniature integrated cardiac pacemaker adapted to be placed in an atrial myocardium and a second ultra miniature integrated cardiac pacemaker adapted to be placed in a ventricular myocardium.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: August 16, 2011
    Assignees: National Cerebral and Cardiovascular Center, Fujikin Inc.
    Inventors: Kenji Sunagawa, Masaru Sugimachi, Masashi Inagaki
  • Patent number: 7962216
    Abstract: A medical treating system based on biological activities characterized by biological activity sensing means for sensing biological activity information produced by biological activities and outputting a biological activity signal, calculating means for receiving, analyzing, and processing the biological activity signals from the biological activity sensing means, calculating an organism stimulation signal, and outputting the organism stimulation signal, and organism stimulating means for receiving the organism stimulation signal calculated by the calculating means and stimulating an organism according to the organism stimulation signal. A cardiac pacing system based on the treating system, a blood pressure regulating system, and a cardiac disease treating system are also disclosed.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: June 14, 2011
    Assignees: National Cerebral and Cardiovascular Center, Fujikin, Inc.
    Inventors: Kenji Sunagawa, Masaru Sugimachi, Takayuki Sato
  • Patent number: 7935385
    Abstract: The object of the present invention is to form a chromium-oxide film excellent in corrosion resistance without containing an oxide film of other metal onto the optional metallic material. The chromium-oxide passivation film excellent in corrosion resistance without containing the oxide film of other metal can be formed inexpensively and in a short time, and a fluid supplying system for supplying fluid hard in corrosivity in safety is able to be provided. This invention comprises a step of forming the passivation film consisting of a chromium oxide by giving heat treatment in an oxidizing atmosphere after coating chromium on metallic material of which surface roughness (Ra) of a coat surface is not more than 1.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: May 3, 2011
    Assignees: Fujikin, Inc.
    Inventors: Tadahiro Ohmi, Yasuyuki Shirai, Nobukazu Ikeda, Eiji Ideta, Akihiro Morimoto, Tetsutaro Ogushi, Takehisa Konishi
  • Publication number: 20060175573
    Abstract: A diaphragm valve 1 is provided with a body 2 having a flow-in passage 6, a flow-out passage 7, and a valve seat 8 formed between the passages; a diaphragm 3 installed in the body 2 and permitted to rest on and move away from the valve seat 8; and a driving means 4 installed on the body 2 to allow the diaphragm 3 to rest on and move away from the valve seat 8, wherein synthetic resin films 5 of predetermined thickness are coated on fluid-contacting parts 25 of the afore-mentioned body 2 and diaphragm 3. A diaphragm valve in accordance with the present invention prevents corrosion of the valve members caused by accumulation and adherence of substances produced by thermal decomposition, and prevents clogging caused by substances produced, and prevents seat leakage when applied in the vacuum exhaust system of a semiconductor manufacturing facility.
    Type: Application
    Filed: February 9, 2004
    Publication date: August 10, 2006
    Applicants: Tadahiro OHMI, Fujikin Inc.
    Inventors: Tadahiro Ohmi, Nobukazu Ikeda, Michio Yamajl, Masafumi Kitano, Akihiro Morimoto
  • Patent number: 6563072
    Abstract: Welding of material such as a piping using ferrite system stainless steel, in which a back sealed gas used for conventional welding is switched from argon gas (or a hydrogen gas/argon gas mix) to an argon gas to which an oxidizing gas is doped at the time of forming a chromium oxide passivation film. Welding conditions are set at the temperature in which the inner surface of the piping does not melt at the time of forming the chromium oxide passivation film. The temperature of the welding piping is set uniformly between welding conditions in conventional welding and welding conditions at the time of forming the chromium oxide passivation film, and in order to replace gases used with conventional welding with gases used at the time of forming the chromium oxide passivation film. A cycle of one round or more is performed under the welding conditions for forming a chromium oxide passivation film, thereby, to form the chromium oxide passivation film on a weld in concurrence with welding.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: May 13, 2003
    Assignees: Fujikin, Inc.
    Inventors: Tadahiro Ohmi, Takahisa Nitta, Yasuyuki Shirai, Osamu Nakamura
  • Patent number: 6462298
    Abstract: The present invention provides a fixing structure for a welding electrode and a welding head which enable improvement of durability of a welding electrode, improvement of work efficiency in welding, and reduction of time required for welding and also which make it possible to execute welding for a long time with high reliability. In this fixing structure, a fixed section of a welding electrode is inserted via a thermally conductive material into an inserting section of a fixing base and a peripheral surface of the fixed section of the welding electrode is uniformly contacted to the fixing base to fix the welding electrode to the fixing base.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: October 8, 2002
    Assignee: Fujikin Inc.
    Inventors: Tadahiro Ohmi, Takahisa Nitta, Yasuyuki Shirai, Osamu Nakamura
  • Patent number: 6394415
    Abstract: A fluid control valve, which can control a fluid having a pressure in the order of 10 kg/cm2, has a response time in the order of several milliseconds can be made small in size, and a fluid supply/exhaust system that provides less gas counter flow in the event of a plurality of valves being used. A fluid control valve of the invention controls a fluid moving in a valve body by closing and opening a portion between a valve seat and a valve holder by use of a drive unit. The drive unit has a rod-shaped shaft for application of pressure through the valve seat and the valve holder, and a member “a” fixed around the rod-shaped shaft. The member “a” is made from a magnetic material, and has a space between it and the shaft. A coil provided in parallel to the shaft, moves the shaft via the member “a” up and down by electromagnetic induction, and makes use of a spring force to close and open a portion between the valve seat and the valve holder.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: May 28, 2002
    Assignees: Fujikin, Inc., Tohoku Steel Co., Ltd.
    Inventors: Tadahiro Ohmi, Migaku Takahashi, Michio Yamaji, Tsuyoshi Tanikawa, Nobukazu Ikeda, Ryosuke Dohi, Kouji Nishino, Naofumi Yasumoto, Hiroyuki Fukuda, Tomio Uno, Yasuyuki Yanai
  • Patent number: 6273139
    Abstract: A fluid control apparatus having a plurality of fluid control members each further having, a blocklike body with an upper side and a lower side, at least one monofunctional member for controlling fluid mounted on the upper side of the blocklike body, and at least one fluid channel formed between the monofunctional member for controlling fluid and the bottom side of the blocklike body; a plurality of couplings each further having, a blocklike body mounted to the bottom surface of at least one fluid control member, at least one communication channel for fluids communicating between at least two fluid channels of at least two different fluid control members; and a base plate for supporting a plurality of couplings. Each of the plurality of fluid control members is mounted to each of the plurality of couplings so as to be individually removable therefrom.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: August 14, 2001
    Assignee: Fujikin, Inc.
    Inventors: Tadahiro Ohmi, Michio Yamaji, Naoya Masuda, Takashi Hirose, Kosuke Yokoyama, Nobukazu Ikeda
  • Patent number: 5983933
    Abstract: A valve mount having two valves removably installed thereon from above as arranged in a direction comprises an inflow channel forming member having a channel in communication with an inlet of the valve disposed at one end thereof, a communication channel forming member having a channel for causing an outlet of the valve at the end to communicate with an inlet of the other valve adjacent thereto, an outflow channel forming member having a channel in communication with an outlet of the other valve, and a subchannel forming member having a channel in communication with an inlet-outlet port formed in the other valve.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: November 16, 1999
    Assignees: Tadahiro Ohmi, Fujikin Inc.
    Inventors: Tadahiro Ohmi, Yuji Kawano, Keiji Hirao, Hisashi Tanaka, Naoya Masuda, Yukio Minami, Masayuki Hatano, Shigeaki Tanaka, Michio Yamaji, Hiroshi Morokoshi, Michio Kuramochi, Nobukazu Ikeda, Shigeru Itoi, Michihiro Kashiwa
  • Patent number: 5711197
    Abstract: A cutter for facing ends of tubes has a cutting edge perpendicular to the axis of a drive shaft and extending obliquely from a plane containing a reference side face of the cutter. The cutter has a base end portion fitted in a cutter mount groove which is defined by a reference side face a specified distance away from the drive shaft axis. The cutter is positioned as shifted a predetermined distance along the length of the groove, with the cutter reference side face bearing on the groove-defining reference side face, whereby the cutter is adapted to cut the tube end in a direction a predetermined angle outward with respect to a tangential direction of the tube at the cutting position.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: January 27, 1998
    Assignee: Fujikin Inc
    Inventors: Tadahiro Ohmi, Eiji Ideta, Akihiro Morimoto
  • Patent number: 5530283
    Abstract: An object of the present invention is to provide a lead frame and a material for lead frame which insure excellent bonding and enables substantial reduction of time for production because such processes as plating are not required and furthermore are excellent in abration resistance.The present invention is characterized in that a silver layer having a construction where amplitude of a refracted ray refracted on the (200) surface is 1/3 or more of the amplitude of refracted X ray refracted on the (111) surface comprises an outer lead section of the base material for the lead frame. The base material is preferably copper, copper-alloy, iron, or iron alloy. The silver layer is formed, for instance, by means of silver plating, and the thickness is preferably in a range from 8 m to 30 m. An intermediate layer may be provided between a surface of the base material and the silver layer.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: June 25, 1996
    Assignees: Tadahiro Ohmi, Fujikin Inc.
    Inventors: Tadahiro Ohmi, Nobukazu Ikeda, Michio Yamaji, Tsutomu Shinohara, Akihiro Morimoto, Yasuyuki Shirai
  • Patent number: 5199802
    Abstract: A nonseparable thrust ball bearing comprising a pair of races spaced apart in the direction of axis of rotation, a plurality of balls rollable between the races, and a connecting ring rotatably interconnecting the inner peripheries of the races. The ring comprises a hollow cylinder portion, and outer flanges formed at the respective ends of the cylinder portion generally at a right angle therewith and in engagement with the respective races. The cylinder portion is fitted at one end thereof in the corresponding one of the races with a clearance formed therebetween, and the flange of the ring at said one end thereof is fitted in a cutout formed in the corresponding race, with a clearance provided in the cutout around the flange.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: April 6, 1993
    Assignee: Fujikin Inc.
    Inventors: Tsutomu Shinohara, Susumu Takei, Shuichi Yoshino