Patents by Inventor Ken Suzuki
Ken Suzuki 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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Publication number: 20020156925Abstract: A gateway system which provides a scalable function and a high performance, includes a signaling gateway 1, an SG common management unit 2, a call agent 3, and an SS7 signal network 100. The signaling gateway 1 includes a plurality of signaling gateway processors 11-14 each of which performs a signal transformation between the SS7 signal network 100 and an IP network. The signaling gateway processors 11-14 are connected to the SS7 signal network 100 by SS7 side signal distribution paths 101-104, and connected to the agent 3 by IP side signal distribution paths 111-114. The SG common management unit 2 manages fault information of input/output signal paths (the SS7 side signal distribution paths 101-104 and the IP side signal distribution paths 111-114), states of the signal gateway processors 11-14, and routing information.Type: ApplicationFiled: April 11, 2002Publication date: October 24, 2002Applicant: NEC CORPORATIONInventor: Ken Suzuki
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Patent number: 6455720Abstract: A novel 2,2-(diaryl)vinylphosphine compound represented by the following general formula (1): (wherein R1 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc.; R2, R3, R4, R5, R6, and R7 may be the same or different and each is an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc., provided that R4 and R5 taken together and/or R6 and R7 taken together may represent a fused benzene ring, a substituted fused benzene ring, a trimethylene group, etc.; and p, q, r, and s each is 0 to 5, provided that p+q and r+s each is in the range of from 0 to 5); a palladium-phosphine catalyst obtained by causing a palladium compound to act on the novel 2,2-(diaryl)vinylphosphine compound; and a process for obtaining an arylamine, a diaryl and an arylalkyne in the presence of the palladium-phosphine catalyst.Type: GrantFiled: June 27, 2001Date of Patent: September 24, 2002Assignee: Takasago International CorporationInventors: Ken Suzuki, Tohru Kobayashi, Takenobu Nishikawa, Yoji Hori, Toshimitsu Hagiwara
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Patent number: 6439719Abstract: An ophthalmological apparatus includes: a main unit section having a movable optical system housing which houses an optical system for shooting or examining an eye to be examined; a manual operation unit manually positioning the main unit section; an alignment chart projection unit projecting onto the eye an chart luminous flux for alignment; a chart detection unit detecting the reflected luminous flux of the chart luminous flux reflected on the eye; an alignment unit moving the optical system housing with respect to the main unit section on the basis of a detection result of the chart detection unit in a case where the main unit section is positioned by the manual operation unit so that the chart detection unit detects the reflected luminous flux; a position information detection unit detecting information about variations in position of the main unit section caused by the manual operation unit during the operation of the chart detection unit; and a correction unit correcting the moving amount of the opticalType: GrantFiled: December 22, 2000Date of Patent: August 27, 2002Assignee: Kabushiki Kaisha TopconInventors: Takefumi Hayashi, Kunihiko Hara, Ken Suzuki
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Patent number: 6416717Abstract: Providing an evacuated blood collection tube for blood collection rapidly, whereby serum of high purity can be isolated in a rapid and simple manner with no occurrence of fibrin deposition. Beads each coated with a blood coagulation-promoting enzyme comprising thrombin and batroxobin are contained in the evacuated blood collection tube. Preferably, thrombin is used in an amount of 0.1 to 3 IU and batroxobin is used in an amount of 0.25 to 2 BU, per 1 ml of collected blood.Type: GrantFiled: August 27, 1999Date of Patent: July 9, 2002Assignee: Nipro CorporationInventors: Ken Suzuki, Hironori Kondo, Manabu Iwatake
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Publication number: 20020058837Abstract: A novel 2,2-(diaryl)vinylphosphine compound represented by the following general formula (1): 1Type: ApplicationFiled: June 27, 2001Publication date: May 16, 2002Inventors: Ken Suzuki, Tohru Kobayashi, Takenobu Nishikawa, Yoji Hori, Toshimitsu Hagiwara
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Patent number: 6365776Abstract: The present invention provides an activator in arylamination using a palladium compound as a catalyst, which is superior to conventional phosphines in stability and performance. With the phosphine sulfide as an activator, an arylamination reaction achieves improved selectivity to produce a desired aromatic amine in an obviously increased yield as compared with a reaction using the corresponding phosphine compound. Moreover, the phosphine sulfide of the invention is impervious to oxidation and exists stably in air and therefore sufficiently withstands use on an industrial scale.Type: GrantFiled: September 6, 2001Date of Patent: April 2, 2002Assignee: Takasago International CorporationInventors: Mitsuhiko Fujiwara, Ken Suzuki, Tohru Kobayashi, Yoji Hori, Toshimitsu Hagiwara
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Publication number: 20020035295Abstract: The present invention provides an activator in arylamination using a palladium compound as a catalyst, which is superior to conventional phosphines in stability and performance. With the phosphine sulfide as an activator, an arylamination reaction achieves improved selectivity to produce a desired aromatic amine in an obviously increased yield as compared with a reaction using the corresponding phosphine compound. Moreover, the phosphine sulfide of the invention is impervious to oxidation and exists stably in air and therefore sufficiently withstands use on an industrial scale.Type: ApplicationFiled: September 6, 2001Publication date: March 21, 2002Applicant: TAKASAGO INTERNATIONAL CORPORATIONInventors: Mitsuhiko Fujiwara, Ken Suzuki, Tohru Kobayashi, Yoji Hori, Toshimitsu Hagiwara
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Publication number: 20020018179Abstract: An ophthalmological apparatus includes: a main unit section having a movable optical system housing which houses an optical system for shooting or examining an eye to be examined; a manual operation unit manually positioning the main unit section; an alignment chart projection unit projecting onto the eye an chart luminous flux for alignment; a chart detection unit detecting the reflected luminous flux of the chart luminous flux reflected on the eye; an alignment unit moving the optical system housing with respect to the main unit section on the basis of a detection result of the chart detection unit in a case where the main unit section is positioned by the manual operation unit so that the chart detection unit detects the reflected luminous flux; a position information detection unit detecting information about variations in position of the main unit section caused by the manual operation unit during the operation of the chart detection unit; and a correction unit correcting the moving amount of the opticalType: ApplicationFiled: December 22, 2000Publication date: February 14, 2002Inventors: Takefumi Hayashi, Kunihiko Hara, Ken Suzuki
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Publication number: 20010026927Abstract: An object of the present invention is to provide a method and a reagent for measuring the subject substances containing high concentration of C-reactive protein without dilution while avoiding prozone phenomenon.Type: ApplicationFiled: February 28, 2001Publication date: October 4, 2001Inventors: Hiroaki Yokohama, Harumi Umehara, Shigeru Matsumori, Satoshi Yamada, Kenshiro Shuto, Shujiro Sakaki, Ken Suzuki
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Patent number: 6294614Abstract: Modified polymers containing a poly(2-hydroxyethyl(meth)acrylate) chain as the hydrophilic polymer segment in which a hydrophobic polymer chain or a lipid residue of a sterol is bound to either end of the poly(2-hydroxyethyl(meth)acrylate) chain through a covalent bond or in which the poly(2-hydroxyethyl(meth)acrylate) chain is grafted onto the backbone chain at either end thereof. These modified polymers are excellent in compatibility with liquid or a living body, thus being advantageously usable particularly in medical fields.Type: GrantFiled: January 27, 1999Date of Patent: September 25, 2001Assignee: K. K. VayuInventors: Kazunori Kataoka, Masao Kato, Yukio Nagasaki, Hotaka Ito, Teiji Tsuruta, Yasuhisa Sakurai, Teruo Okano, Ken Suzuki
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Patent number: 6237553Abstract: A valve drive arrangement for use in an engine having a pair of intake valves and a pair of exhaust valves for each cylinder. Each pair of intake valves are coupled to each other by a valve bridge and forced downwards simultaneously by a single rocker arm, and each pair of exhaust valves are coupled to each other by another valve bridge and forced downwards simultaneously by another single rocker arm. A contact member is rotatably provided on an upper surface of each valve bridge such that it contacts the associated rocker arm. The press center of the rocker arm to the associated contact member and center lines of the associated valves lie in a single plane. A rotation center of the associated contact member is offset from this single plane.Type: GrantFiled: April 25, 2000Date of Patent: May 29, 2001Assignee: Isuzu Motors LimitedInventor: Ken Suzuki
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Patent number: 6135192Abstract: In a blind device, comprising a fixed frame 1, at least a pair of arms 5 each having an end pivotally attached to the fixed frame, a moveable frame 4 which is adapted to move toward and away from the fixed frame in a parallel relationship by rotational movements of the two arms, and a light-shielding screen 3 having one end fixedly attached to and wound around a roll 2 which is pivotally supported by the fixed frame, and another end fixedly attached to the moveable frame, characterized by that; a pivot shaft for pivotally supporting each arm on the fixed frame is incorporated with spring means 16 which resiliently urges the corresponding arm toward its upright position, and the blind device further comprises an electric actuator 17 having reverse drive preventing means for applying a rotative force to the roll so as to wind the screen thereon against a spring force of the spring means.Type: GrantFiled: August 30, 1999Date of Patent: October 24, 2000Assignee: NHK Spring Co., Ltd.Inventors: Ken Suzuki, Masaru Inoue, Ichiro Sasuga
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Patent number: 5409287Abstract: Several embodiments of aerodynamic devices for improving the drag coefficient and reducing the wind resistance of a body moving through the air such as a motorcycle and/or a helmet worn by a rider of the motorcycle. The aerodynamic devices comprise a plenum chamber to which air is delivered through a relatively small ram air inlet opening. Air is discharged from the plenum chamber through a plurality of small apertures for generating a thin turbulent boundary layer between the body surface and the air flowing across the surface to promote laminar flow across the body surface.Type: GrantFiled: August 30, 1993Date of Patent: April 25, 1995Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Ken Suzuki
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Patent number: 5404926Abstract: A roller shade comprising a spring-loaded retractor, a screen sheet having a trailing edge connected to the retractor, and a rod member attached to a leading edge of the screen sheet. The two ends of the rod member are guided by a pair of guide rails so that the rod member may be moved toward and away from the retractor by using a power drive unit in such a manner that the screen sheet may be paid out from the retractor and extended against the spring force acting on the retractor, and retracted or wound around the retractor, as desired. The rod member incorporates therein a telescopic structure which allows its length to be varied according to the change in the distance between the guide rails as the rod member is moved toward and away from the retractor. Thus, the roller shade can be adapted to windshields, windows or other openings having trapezoidal, curved or other non-rectangular shapes.Type: GrantFiled: March 4, 1993Date of Patent: April 11, 1995Assignee: NHK Spring Co., Ltd.Inventors: Juji Ojima, Ken Suzuki
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Patent number: 5391058Abstract: A fluidic apparatus includes a pulley driven by an engine, torque limiting means disposed in the pulley and adapted to shut off the transmission of driving force transmitted by the pulley when overload is applied thereto, and a driving shaft driven by the torque limiting means. The torque limiting means includes a boss formed coaxially with the pulley, a collar disposed integrally and coaxially with the driving shaft, and a coiled spring adapted to hold outer peripheral surfaces of the boss and the collar by tightening with a predetermined tightening allowance. With the torque limiting means, if abnormal loads should be applied to the driving shaft, there hardly occur internal breakages, or the like, in the fluidic apparatus. In addition, because the torque limiting means has such a simple construction, the fluidic apparatus is down-sized and reduced in manufacturing cost.Type: GrantFiled: March 22, 1993Date of Patent: February 21, 1995Assignees: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, NHK Spring Co., Ltd.Inventors: Kunifumi Goto, Nobuaki Hoshino, Tatsuyuki Hoshino, Takashi Ban, Shigeru Suzuki, Ken Suzuki, Akira Umebayashi, Yukiharu Yusa
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Patent number: 5201810Abstract: In a roller shade for an opening such as a rear windshield of an automobile, when the shade is full closed, the pull rod is intentionally bent so as to fully conform to the peripheral edge of the opening. The bending of the pull rod can be achieved either by an axial force which may be produced by gradually reducing the distance between a pair of guide members extending on either lateral side of the opening as the pull rod moves up or by a lateral force which may be produced by placing a slope on which the pull rod rides over as it reaches its final position for fully covering the opening. By controlling the bent shape of the pull rod in a suitable manner, it is possible to entirely cover the opening without leaving any uncovered gap.Type: GrantFiled: May 21, 1992Date of Patent: April 13, 1993Assignee: NHK Spring Co., Ltd.Inventors: Juji Ojima, Ken Suzuki
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Patent number: 4032598Abstract: A process for purifying a halogenated alkenylphenol polymer by treating the polymer with an aqueous solution of a basic compound such as a hydroxide, carbonate, or hydrogen carbonate of an alkali metal, an alkylamine, or ammonium. By the treatment, low molecular weight halides, etc., contained in the halogenated polymer as impurities are effectively removed.Type: GrantFiled: April 26, 1976Date of Patent: June 28, 1977Assignee: Maruzen Oil Co. Ltd.Inventors: Hiroshi Fujiwara, Asao Takahashi, Ken Suzuki