Patents by Inventor Kazuo Ohba

Kazuo Ohba 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: 6926812
    Abstract: To avoid the formation of undesirable plating on electric supply rollers, there is provided a continuous plating apparatus in which a planar article to be plated is vertically clamped on both sides by electric supply rollers and the article to be plated is moved horizontally in a plating bath by the rotation of the electric supply rollers to plate both surfaces of the article to be plated. The apparatus is characterized in that the electric supply rollers are divided into conductive segments and non-conductive segments in the circumferential direction, with only the conductive segment which is in contact with the article to be plated being negatively charged, and other conductive segments which are at a distance from the article being positively charged.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: August 9, 2005
    Inventor: Kazuo Ohba
  • Patent number: 6893319
    Abstract: An arm (17A, 17B, 17C) for an elastic doll capable of preventing torsional rotation of a core (10) in a molding material molded. The elastic doll arm includes the core (10) made of metal and arranged therein. The metal core (10) is provided on a distal end thereof or a portion thereof positioned in proximity to the distal end with a spacer (13) having a sectional area smaller than that of the arm. A material for the spacer (13) and the molding material for the arm are compatible with each other, resulting in the spacer (13) being integrated with the molding material.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: May 17, 2005
    Assignee: Takara Co., Ltd.
    Inventor: Kazuo Ohba
  • Patent number: 6524519
    Abstract: A molding method and a mold therefor capable of forming a doll head of a shape exactly conforming to a mold by blow molding using a safe molding material. A split mold (2, 3) which has an inner surface formed to have a configuration conforming to a shape of a doll head (17) is so arranged that a parting line (18) formed by mold members (2, 3) of the split mold may be formed on a hairline of the hair of the doll head (17) or in proximity thereto. A molding material is constituted by a thermoplastic synthetic resin elastomer as a main ingredient thereof and has a plasticizer and a coloring agent added thereto. The molding material is heated and then dropped in as a parison (15) between the mold members (2, 3) of the split mold spaced from each other. Then, the mold members (2, 3) of the split mold are joined together and air is blown into the split mold. Air is removed through at least one projection such as a nose (5) or the like from a cavity during blowing of air into the split mold (2, 3).
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: February 25, 2003
    Assignee: Takara Co., Ltd.
    Inventors: Kazuo Ohba, Takahiro Ueno
  • Publication number: 20020189934
    Abstract: To avoid the formation of undesirable plating on electric supply rollers, there is provided a continuous plating apparatus in which a planar article to be plated is vertically clamped on both sides by electric supply rollers and the article to be plated is moved horizontally in a plating bath by the rotation of the electric supply rollers to plate both surfaces of the article to be plated. The apparatus is characterized in that the electric supply rollers are divided into conductive segments and non-conductive segments in the circumferential direction, with only the conductive segment which is in contact with the article to be plated being negatively charged, and other conductive segments which are at a distance from the article being positively charged.
    Type: Application
    Filed: August 21, 2002
    Publication date: December 19, 2002
    Inventor: Kazuo Ohba
  • Patent number: 6471846
    Abstract: To avoid the formation of undesirable plating on electric supply rollers, there is provided a continuous plating apparatus in which a planar article to be plated is vertically clamped on both sides by electric supply rollers and the article to be plated is moved horizontally in a plating bath by the rotation of the electric supply rollers to plate both surfaces of the article to be plated. The apparatus is characterized in that the electric supply rollers are divided into conductive segments and non-conductive segments in the circumferential direction, with only the conductive segment which is in contact with the article to be plated being negatively charged, and other conductive segments which are at a distance from the article being positively charged.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: October 29, 2002
    Inventor: Kazuo Ohba
  • Patent number: 6464557
    Abstract: A method for forming a safe molding material into an elastic doll head of a uniform thickness without deteriorating an appearance of the doll head. Split mold members (2, 3) each have an inner surface (2a, 3a) formed to have a configuration which provides a shape of a doll head (A) when the split mold members cooperate with each other. The split mold members (2, 3) form the doll head with a parting line (18) in a manner to extend from an upper portion (27) of a forehead of the doll head through a rear side (28) of each of ears thereof to a rear portion (29) of a neck thereof, to thereby substantially equally divide the doll head into two halves. A molding material mainly consisting of a thermoplastic synthetic resin elastomer is heated and dropped in the form of a parison (13) into a space defined between the split mold members (2, 3) kept spaced from each other. Then, the split mold members (2, 3) are joined to each other and air is blown into the thus-joined split mold members.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: October 15, 2002
    Assignee: Takara Co., Ltd.
    Inventors: Kazuo Ohba, Takahiro Ueno, Akira Watanabe
  • Patent number: 6174418
    Abstract: A continuous plating apparatus in which a planar article, to be plated, laid vertically on a rail is delivered while being clamped on both sides by vertical rotational rollers including a drive roller, and continuously fed through a slit provided liquid-tightly in a plating bath wall into a plating bath, and after the plating, fed out of the bath through a slit provided liquid-tightly in the plating bath wall in the same way, meets the following requirements: i) an upper end of the drive roller is arranged to be slanted forwardly and the slant of the drive roller is in the range of 1 to 10° so as to prevent the article to be plated from stepping during delivering; ii) a part of an rotational roller and/or a drive roller is an electric feeding roller, and a means for peeling a plated layer adhered to the surface of the electric feeding roller is provided; iii) a means for depressing the electric feeding roller against the article to be plated is provided for always keeping constant the flow of the curre
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: January 16, 2001
    Inventor: Kazuo Ohba
  • Patent number: 6165330
    Abstract: To quickly remove, away from a rail, an article which is subject to defects in the case where the feeding of the article to be delivered along the rail and plated is hindered, there is provided a continuous plating apparatus in which a planar article (3) to be plated is laid in a vertical direction on a rail (2) horizontally provided in a plating bath, and the article to be plated is clamped on both surfaces by rollers (5 and 17) fixed to vertical rotary shafts (4 and 10) and moved on and along the rail (2) to thereby plate the article (3), characterized in that an upper end side of each unit composed of the plurality of rotary shafts (10) is moved in a direction away from the article (3) to be plated. By only moving the upper ends of the rotary shafts (10) in the direction away from the articles (3) to be plated and by slanting the rotary shaft (10), the articles (3) having an inconvenience can be removed upwardly without removing the rotary shafts (10).
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: December 26, 2000
    Inventor: Kazuo Ohba
  • Patent number: 6071387
    Abstract: An automatic plating method and an apparatus thereof for plating objects to be plated placed upright in a plating tank by moving them continuously in a horizontal direction individually is provided. The method comprises detecting the height of the upper end of each object, and discharging a plating liquid in said plating tank from a hole formed at a height corresponding to the detected height of the upper end of the object out of a plurality of holes formed in the side wall of said plating tank at different heights. At the time of suspension, the plating liquid is discharged up to a position below partition doors and anodes are sunk and kept in the tank having a lowered bottom below the partition doors.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: June 6, 2000
    Inventor: Kazuo Ohba
  • Patent number: 5378507
    Abstract: A continuous dry coating method and an apparatus therefor which are capable of removing cut chips and burrs from and smoothing inner walls of small-diameter holes in a substrate material and, then, successively performing a cold coating on these small holes in a short period of time. The continuous dry process coating method comprises the steps of: arranging electrodes on opposite sides of a substrate material; performing a plasma discharge to surface-treat small holes made in the substrate material; and then performing an electron cyclotron resonance plasma (ECR plasma) coating on the surfaces of these holes.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: January 3, 1995
    Assignees: Sakae Electronics Industrial Co., Ltd., Kazuo Ohba, Yoshinori Shima, Akira Ohba
    Inventors: Kazuo Ohba, Yoshinori Shima, Akira Ohba
  • Patent number: 5370779
    Abstract: A plasma process utilizing an electron cyclotron resonance (ECR) phenomenon caused by generating a magnetic field either parallel or perpendicular to, or both parallel and perpendicular to, a microwave propagation direction, characterized in that an ion beam is made to converge by applying a pulse voltage to a rotating magnetic field, a pulse voltage is applied to deflection plates, and an accelerating pulse voltage is further applied to a plasma.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: December 6, 1994
    Assignees: Sakae Electronics Industrial Co., Ltd., Kazuo Ohba, Yoshinori Shima, Akira Ohba
    Inventors: Kazuo Ohba, Yoshinori Shima, Akira Ohba
  • Patent number: 5322985
    Abstract: A method for boring small holes in a substrate by disposing electrodes on both sides of a substrate to be machined and applying a voltage between the electrodes so as to perform plasma discharge treatment at a pressure of 10 to 2.times.10.sup.3 Torrs. In another method, the gap of the two electrodes is set to 0.01 to 50 mm and a peak voltage to 10 V to 50,000 V in accordance with the electrode gap within the range of .tau..sub.ON the voltage waveform of 5 .mu.s to 20 seconds. The methods make it possible to quickly and reliably accomplish removal of chips causing clogging, smoothing of the inner walls of the holes and removal of fins in the holes.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: June 21, 1994
    Assignees: Sakae Electronics Industrial Co., Ltd., Kazuo Ohba, Kaori Shima, Akira Ohba
    Inventors: Kazuo Ohba, Kaori Shima, Akira Ohba