Patents by Inventor Kikuo Wakino
Kikuo Wakino 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: 7682551Abstract: A three-dimensional component having cavities containing a photocurable resin material and having a structure in which a plurality of cured resin layers composed of the photo-cured resin material are stacked, is manufactured by stereolithography. Inorganic members are inserted into concave portions when the concave portions are formed before covering the cavities, each of the concave portions being at least a portion of the corresponding cavity, and the photocurable resin material remaining. When the three-dimensional component is completed, the photocurable resin material remaining in the cavity is thermally cured, thus being brought into contact with the inorganic members. In this manner, a three-dimensional photonic structure having the plurality of inorganic members precisely disposed at desired periodic positions within the resin matrix is efficiently manufactured.Type: GrantFiled: June 4, 2004Date of Patent: March 23, 2010Assignee: Murata Manufacturing Co., Ltd.Inventors: Takuji Nakagawa, Kikuo Wakino
-
Patent number: 7180307Abstract: A coaxial probe includes an inner conductor, an outer conductor, and a dielectric interposed between the inner and outer conductors, the top-end portion of the coaxial probe having a substantially circular cone shape between the top-end of the inner conductor and the end of the outer conductor so that a portion of the inner conductor and a portion of the dielectric are exposed, and the height of the substantially circular cone portion being set at a value at which a reflection coefficient exhibits substantially a minimum value. The dielectric constant of the dielectric is preferably within the range of about 0.132 times to about 0.6 times as large as the dielectric constant of a surrounding substance (living tissue, i.e., an object to which an electromagnetic wave is irradiated).Type: GrantFiled: June 8, 2004Date of Patent: February 20, 2007Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Toshihide Kitazawa
-
Publication number: 20050285115Abstract: A three-dimensional component having cavities containing a photocurable resin material and having a structure in which a plurality of cured resin layers composed of the photo-cured resin material are stacked, is manufactured by stereolithography. Inorganic members are inserted into concave portions when the concave portions are formed before covering the cavities, each of the concave portions being at least portion of the corresponding cavity, and the photocurable resin material remaining. When the three-dimensional component is completed, the photocurable resin material remaining in the cavity is thermally cured, thus being brought into contact with the inorganic members. In this manner, a three-dimensional photonic structure having the plurality of inorganic members precisely disposed at desired periodic positions within the resin matrix is efficiently manufactured.Type: ApplicationFiled: June 4, 2004Publication date: December 29, 2005Inventors: Takuji Nakagawa, Kikuo Wakino
-
Publication number: 20050027335Abstract: A coaxial probe includes an inner conductor, an outer conductor, and a dielectric interposed between the inner and outer conductors, the top-end portion of the coaxial probe having a substantially circular cone shape between the top-end of the inner conductor and the end of the outer conductor so that a portion of the inner conductor and a portion of the dielectric are exposed, and the height of the substantially circular cone portion being set at a value at which a reflection coefficient exhibits substantially a minimum value. The dielectric constant of the dielectric is preferably within the range of about 0.132 times to about 0.6 times as large as the dielectric constant of a surrounding substance (living tissue, i.e., an object to which an electromagnetic wave is irradiated).Type: ApplicationFiled: June 8, 2004Publication date: February 3, 2005Applicant: Murata manufacturing Co., Ltd.Inventors: Kikuo Wakino, Toshihide Kitazawa
-
Patent number: 6165263Abstract: A method for growing a single crystal by allowing a seed crystal to contact a molten zone formed by melting a polycrystalline material, followed by moving the molten zone away from the seed, wherein the oxygen concentration in the atmosphere during growth of the single crystal is lower than about 10% by volume.Type: GrantFiled: March 5, 1999Date of Patent: December 26, 2000Assignee: Murata Manufacturing Co., Ltd.Inventors: Takenori Sekijima, Takashi Fujii, Kikuo Wakino, Masakatsu Okada
-
Patent number: 6063304Abstract: The present invention provides a cerium-containing magnetic garnet single crystal having a size large enough to use as a material for optical communication of an isolator and for an electronic device, and a production method therefor. The cerium-containing magnetic garnet single crystal of the present invention is obtained by melting a cerium-containing magnetic garnet polycrystal while applying a sharp, large temperature gradient to the solid-liquid interface of the melt and the solid, and then solidifying the melted polycrystal. The polycrystal is preferably heated by using an optical heating device, for example, a combination of a main heating device using a laser beam, and an auxiliary heating device using reflected light from a halogen lamp.Type: GrantFiled: January 27, 1999Date of Patent: May 16, 2000Assignee: Murata Manufacturing Co., Ltd.Inventors: Takashi Fujii, Takenori Sekijima, Kikuo Wakino, Masakatsu Okada
-
Patent number: 6039802Abstract: There is provided a single crystal growth method which allows single crystal of an incongruent melting compound to be grown stable while controlling its growth orientation. The single crystal growth method comprises the steps of: holding polycrystal and seed crystal within a heating furnace; joining the polycrystal with the seed crystal; heating the polycrystal on the side opposite from the side where the polycrystal is joined with the seed crystal to form a melt zone; moving the melt zone to the side where the polycrystal is joined with the seed crystal so that the melt zone is in contact with the seed crystal to allow seeding; and growing single crystal by moving the melt zone which has been in contact with the seed crystal and been seeded to the opposite side from the side where the polycrystal is joined with the seed crystal.Type: GrantFiled: March 5, 1998Date of Patent: March 21, 2000Assignee: Murata Manufacturing Co., Ltd.Inventors: Takenori Sekijima, Takashi Fujii, Kikuo Wakino, Masakatsu Okada
-
Patent number: 6033470Abstract: The present invention provides a cerium-containing magnetic garnet single crystal having a size large enough to use as a material for optical communication of an isolator and for an electronic device, and a production method therefor. The cerium-containing magnetic garnet single crystal of the present invention is obtained by melting a cerium-containing magnetic garnet polycrystal while applying a sharp, large temperature gradient to the solid-liquid interface of the melt and the solid, and then solidifying the melted polycrystal. The polycrystal is preferably heated by using an optical heating device, for example, a combination of a main heating device using a laser beam, and an auxiliary heating device using reflected light from a halogen lamp.Type: GrantFiled: March 21, 1997Date of Patent: March 7, 2000Assignee: Murata Manufacturing Co., Ltd.Inventors: Takashi Fujii, Takenori Sekijima, Kikuo Wakino, Masakatsu Okada
-
Patent number: 5451882Abstract: Powder and a liquid medium are introduced between a pair of electrode members which are opposed to each other with a constant space, formed there between and an apparent dielectric constant of a composite system of the powder and the liquid medium is measured with a powder volume ratio being set at 0.45 to 0.55 and a measuring frequency of at least 1 MHz. The measured value is applied to the logarithmic mixing rule or the Lichtone-Rother equation, to find the dielectric constant of the powder. It is possible to reliably find the dielectric constant of the powder with application of the logarithmic mixing rule or the Lichtone-Rother equation.Type: GrantFiled: October 25, 1993Date of Patent: September 19, 1995Assignee: Murata Mfg. Co., Ltd.Inventors: Kikuo Wakino, Katsumi Yukawa, Shunjiro Imagawa
-
Patent number: 5441657Abstract: A vibration-isolating composite material consists essentially of powder of an inorganic elastic material and a synthetic polymer mixed thereto. The inorganic elastic material is at least one material selected from the group consisting of NdP.sub.5 O.sub.4, BiVO.sub.3, Gd.sub.2 (MoO.sub.4).sub.3, GdNbO.sub.4 and KH.sub.2 PO.sub.4 and the synthetic polymer is at least one material selected from the group consisting of thermoplastic resins, thermosetting resins and rubber materials.Type: GrantFiled: October 24, 1994Date of Patent: August 15, 1995Assignee: Murata Mfg. Co., Ltd.Inventor: Kikuo Wakino
-
Patent number: 5184096Abstract: A parallel connection multi-stage band-pass filter including an input terminal and an output terminal for signals, a plurality of resonators respectively having resonator frequencies different from and close to one another which are electrically connected in parallel to each other between said input and output terminals.Type: GrantFiled: August 27, 1991Date of Patent: February 2, 1993Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Toshio Hishikawa, Youhei Ishikawa, Koichi Takehara, Toru Tanizaki
-
Patent number: 5181864Abstract: A connector comprising a housing having a varistor-characteristic resin portion, and signal coupling terminal conductors which penetrate the varistor-characteristic resin portion. The housing itself is made of a varistor-characteristic resin material or the housing is fitted, at its side recess portion, with the varistor-characteristic resin material.Type: GrantFiled: December 2, 1991Date of Patent: January 26, 1993Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Iwao Fukutani
-
Patent number: 5172304Abstract: A flat capacitor-containing wiring board, which can be arranged optionally in the interior of a multilayer substrate. This capacitor-containing wiring board has a dielectric substrate which is made of a mixture of dielectric powder and resin, and conductors which are provided on both major surfaces of the dielectric substrate. The conductors can be etched and shaped so as to form capacitors which use the interior of the wiring board as their dielectric layers. With this wiring board, it is possible to etch the conductors so that the values of the capacitors can be freely selected over a wide range, the wiring board is flexible to some extent, and no pinholes or defects are defined over a wide area. Preferably, the board has a greater relative resin content near its surfaces than in its interior, which improves the dielectric characteristics of the board. The increased resin content may be provided by resin adhesive layers on the surfaces which permeate the board to some extent.Type: GrantFiled: November 21, 1991Date of Patent: December 15, 1992Assignee: Murata Manufacturing Co., Ltd.Inventors: Jyuichiro Ozawa, Kikuo Wakino
-
Patent number: 5164691Abstract: Structure for use in forming a resonant circuit eliminates a support block for the installation of a dielectric resonator, by providing a satisfactory way to directly install the dielectric resonator on a microwave circuit board having a microstrip line. The dielectric resonator is directly fixed on the microwave circuit board in such a manner that mutually opposing planar surfaces thereof do not face one planar surface of the microwave circuit board, and an axial line passing normally through these planar surfaces intersects a normal plane projected from the microstrip line. As a result, production costs can be reduced and simplified work processes can be used to fabricate the structure. Further, an electrode film may be formed on a flat part of the outer periphery of the dielectric resonator, and such a dielectric resonator is fixed on the microwave circuit board with the flat part on which said electrode film is formed, facing upwards.Type: GrantFiled: December 27, 1990Date of Patent: November 17, 1992Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Atsushi Inoue, Fumiaki Kinoshita
-
Patent number: 5097236Abstract: A parallel connection multi-stage band-pass filter including an input terminal and an output terminal for signals, a plurality of resonators respectively having resonator frequencies different from and close to one another which are electrically connected in parallel to each other between said input and output terminals.Type: GrantFiled: May 1, 1990Date of Patent: March 17, 1992Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Toshio Nishikawa, Youhei Ishikawa, Koichi Takehara, Toru Tanizaki
-
Patent number: 4931354Abstract: A multilayer printed circuit board comprises plural insulating layers integrated into one body, and internal wiring conductor layers located on the internal insulating layers, characterized in that conductor paths in each internal conductor layer are locally separated from the insulating layer by a cavity or porous layer provided at the boundaries between the path and insulating layer adjacent thereto. At least one insulating layer between internal conductor layers may be provided with a layered space or porous layer therein.Type: GrantFiled: November 1, 1988Date of Patent: June 5, 1990Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Harufumi Mandai
-
Patent number: 4692727Abstract: A dielectric resonator device includes a casing for defining a chamber in which a dielectric resonator and a piezoelectric frequency adjusting unit are provided. A portion of the piezoelectric frequency adjusting unit is located adjacent the dielectric resonator. By the voltage applied to the piezoelectric frequency adjusting unit, the piezoelectric frequency adjusting unit changes its shape thereby changing the distance between the portion of the piezoelectric frequency adjusting unit and the dielectric resonator. Thus, the resonance frequency of the dielectric device can be controlled.Type: GrantFiled: June 3, 1986Date of Patent: September 8, 1987Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Hiroshi Tamura, Youhei Ishikawa
-
Patent number: 4595515Abstract: A vibration-isolating article is composed of a composite material comprising a powdered piezoelectric material and a high polymer, said composite material having electrical leakage paths. The electrical leakage paths may be formed by an electrically conductive powdered material incorporated into the composite material, or the powdered piezoelectric material per se, or a matrix of the high polymer.Type: GrantFiled: August 28, 1984Date of Patent: June 17, 1986Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Michihiro Murata, Shunjiro Imagawa
-
Patent number: 4507630Abstract: A noise filter (17) comprising a plurality of cylindrical capacitors (12) having a throughgoing hole (13) for receiving a connection pin (20) of a connector (18). The inner peripheral surface of each cylindrical capacitor (12) is formed with an inner electrode (14) for electric connection to the connection pin. The outer peripheral surface of the cylindrical capacitor (12) is formed with an outer electrode (15). The plurality of cylindrical capacitors (12) are bunched with their outer peripheral surfaces contacting with each other, their outer electrodes being electrically connected together.Type: GrantFiled: January 17, 1983Date of Patent: March 26, 1985Assignee: Murata Manufacturing Co., Ltd.Inventor: Kikuo Wakino
-
Patent number: 4487578Abstract: A continuous firing equipment for ceramics is disclosed. A furnace body is equipped with electrical heating elements and has a horizontally looped track extending therethrough. A plurality of cars made of a metal material having a small heat capacity and a high resistance to thermal shocks are arranged all along the track so as to travel on the track. A plurality of saggars made of a ceramic wool material are loaded on the cars. A drive system including a looped driving member arranged along the circumference of the track and coupled to the cars is provided for driving the cars along the track.Type: GrantFiled: October 19, 1982Date of Patent: December 11, 1984Assignee: Murata Manufacturing Co., Ltd.Inventors: Kikuo Wakino, Kiichi Minai, Hiroshi Seno