Patents by Inventor Junichi Takahashi

Junichi Takahashi 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).

  • Publication number: 20180319218
    Abstract: Provided is a pneumatic tire for motorcycles which can exhibit a performance of a new tire at an early period and enables visual confirmation that the tire as new is worn to such an extent as to be capable of sufficiently exhibiting its performance. The pneumatic tire for motorcycles includes a tread portion 10 formed into a ring shape, in which the tread portion 10 is provided with a width direction shallow groove 11b in which the shallow groove having a width of 0.1 to 2.0 mm and a depth of 0.1 to 2.0 mm is designed to extend at least in a tire width direction. A length of the width direction shallow groove 11b is greater than or equal to 50% of a width of a tire ground contact surface, and the width direction shallow groove 11b is provided at intervals which are shorter than a length of the tire ground contact surface.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 8, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasufumi TOKITOH, Junichi TAKAHASHI, Dyta ITOI, Takamitsu NAKAMURA
  • Publication number: 20180304696
    Abstract: Provided is a pneumatic tire for a motorcycle that is capable of early exhibiting performance of a new tire and that enables it to be visually confirmed that the new tire is worn to a degree that the tire can fully exhibit the performance. The pneumatic tire for a motorcycle includes a tread portion 1 formed into a ring shape, in which the tread portion 1 is provided with shallow grooves 2 having a width of 0.1 to 2.0 mm and a depth of 0.1 to 2.0 mm and extending in a tire circumferential direction.
    Type: Application
    Filed: October 28, 2016
    Publication date: October 25, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yasufumi TOKITOH, Junichi TAKAHASHI, Dyta ITOI, Takamitsu NAKAMURA
  • Patent number: 10072313
    Abstract: Provided is a smelting method capable of effectively promoting a reduction reaction on pellets formed using nickel oxide ore as starting material to obtain a ferronickel alloy with a high nickel grade of at least 4%. The present invention is a method for smelting nickel oxide ore wherein ferronickel alloy with a nickel grade of at least 4%, the method comprising a pellet-producing step S1 for producing pellets from nickel oxide ore, and a reducing step S2 for reduction-heating of the obtained pellets in a smelting furnace. In the pellet-producing step S1, the pellets are produced by mixing nickel oxide ore with a specified amount of a carbonaceous reducing agent as starting materials. In the reducing step S2, the produced pellets are charged in a smelting furnace in which a carbonaceous reducing agent (furnace bottom carbonaceous reducing agent) has been spread over the entire furnace bottom and reduction-heating is performed.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: September 11, 2018
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Patent number: 10041144
    Abstract: Provided is a method for smelting nickel oxide ore by which the occurrence of cracking due to heat shock can be suppressed when nickel oxide ore is pelletized and charged into a smelting step (reduction step). A method for smelting nickel oxide ore according to the present invention uses pellets of nickel oxide ore, the method being characterized by comprising a pellet production step S1 for producing pellets from nickel oxide ore, and a reduction step S2 for heating the resulting pellets at a predetermined reduction temperature in a reduction furnace, the reduction step S2 comprising preheating the pellets obtained in the pellet production step S1 to a temperature of 350 to 600° C. in the reduction furnace and thereafter charging the pellets into the reduction furnace and raising the temperature of the reduction furnace to the reduction temperature.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: August 7, 2018
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Patent number: 9989475
    Abstract: In measuring a dissolved substance, a concentration of a specific dissolved substance in a sample water is measured using a measuring water W1 developing a specific color within a specific pH range by adding each of two reagents to a sample water W0, and an acid-base indicator S developing different colors other than the specific color is selected in a first pH range including the specific pH range and a second pH range deviating from the first pH range. Next, a reagent is prepared by adding the acid-base indicator to one reagent wherein a pH value of a reagent added water where the two kinds of reagents are separately added to the sample water is within the second pH range. Next, absorbance values are calculated by three region component lights which are a transmitted light in the measuring water wherein the prepared reagent is added.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: June 5, 2018
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventor: Junichi Takahashi
  • Patent number: 9970085
    Abstract: Provided is a production method for producing pellets that are used for producing an iron-nickel alloy and that are produced by mixing at least a nickel oxide ore, a carbonaceous reducing agent, and an iron oxide and agglomerating the obtained mixtures, the method comprising: a step S11 for producing at least two types of mixtures having different mixing ratios of nickel oxide ore, carbonaceous reducing agent, and iron oxide; and a step S12 for forming pellets, which are agglomerates having a layered structure, by using the two or more types of mixtures such that the mixture with the highest content ratio of iron oxide, among the two or more types of mixtures forms the outermost layer.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: May 15, 2018
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Patent number: 9938604
    Abstract: Provided is a method for producing pellets by which, when nickel oxide ore is being pelletized and smelted to produce ferronickel, which is an iron-nickel alloy, it is possible to allow the smelting reaction to proceed effectively. A method for producing pellets according to the present invention is for producing pellets which are used in producing iron-nickel alloy and which are produced by mixing raw materials including nickel oxide ore and agglomerating the resulting mixture, wherein the method comprises: a mixing step S11 for mixing at least nickel oxide ore, a carbonaceous reducing agent, and iron oxide to generate a mixture; and a pellet formation step S12 for agglomerating the resulting mixture and forming pellets. In the mixing step S11, the mixture is generated such that the total weight of nickel and iron accounts for 30 wt % or more of the total weight of the pellets formed.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: April 10, 2018
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Patent number: 9933369
    Abstract: A reagent includes a coloring agent allowing a measured solution to develop a color transmitting a region component light for a dissolved-substance concentration measurement selected from three region component lights of red, green, and blue obtained by transmitting a light including a visible light region to the measured solution colored by addition of the reagent to the sample, and dividing a light of the visible light region of a transmitted light thereof into roughly three portions. Based on the transmitted light from the measured solution with the coloring agent added, an absorbance of the region component light for the dissolved-substance concentration measurement, and an absorbance A3 of another region component light resulted only from the coloring agent are calculated. Whether or not the reagent in a necessary quantity is added to the sample can be judged by comparing the absorbance A3 and a standard absorbance A0.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: April 3, 2018
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventors: Yoshitaka Kishine, Toshikazu Takahashi, Junichi Takahashi
  • Publication number: 20180030574
    Abstract: Provided is a smelting method whereby a reaction for reducing pellets, said pellet being formed by using a saprolite ore as a starting material, can be effectively conducted and thus an iron/nickel alloy having a nickel grade of, for example, 16% or greater can be obtained. The method comprises: a pellet production step (S1) for producing the pellets from the saprolite ore; and a reduction step (S2) for heating and reducing the obtained pellets in a smelting furnace. In the pellet production step (S1), at least the saprolite ore and a preset amount of a carbonaceous reducing agent are mixed together to produce the pellets. In the reduction step (S2), a hearth carbonaceous reducing agent is preliminarily spread on the hearth of the smelting furnace and the pellets produced above are placed on the hearth carbonaceous reducing agent and then subjected to a heat reduction treatment.
    Type: Application
    Filed: December 1, 2015
    Publication date: February 1, 2018
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Publication number: 20170342514
    Abstract: Provided is a smelting method capable of effectively promoting a reduction reaction on pellets formed using nickel oxide ore as starting material to obtain a ferronickel alloy with a high nickel grade of at least 4%. The present invention is a method for smelting nickel oxide ore wherein ferronickel alloy with a nickel grade of at least 4%, the method comprising a pellet-producing step S1 for producing pellets from nickel oxide ore, and a reducing step S2 for reduction-heating of the obtained pellets in a smelting furnace. In the pellet-producing step S1, the pellets are produced by mixing nickel oxide ore with a specified amount of a carbonaceous reducing agent as starting materials. In the reducing step S2, the produced pellets are charged in a smelting furnace in which a carbonaceous reducing agent (furnace bottom carbonaceous reducing agent) has been spread over the entire furnace bottom and reduction-heating is performed.
    Type: Application
    Filed: September 15, 2015
    Publication date: November 30, 2017
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Publication number: 20170305314
    Abstract: A cover material for a vehicle seat provides favorable touch while utilizing the texture of a leather material. A cover material for a vehicle seat includes: a leather portion made of natural leather or artificial leather; and a mesh fabric portion bonded to the back side of the leather portion.
    Type: Application
    Filed: October 5, 2015
    Publication date: October 26, 2017
    Inventors: Takako MIYOSHI, Junichi TAKAHASHI
  • Publication number: 20170306444
    Abstract: A smelting method capable of obtaining an iron-nickel alloy having a high nickel grade of 4% or higher by effectively facilitating a reduction reaction of pellets formed using a nickel oxide ore as a raw material. The present invention is a method for smelting a nickel oxide ore, by which an iron-nickel alloy is obtained by forming pellets from a nickel oxide ore and reducing and heating the pellets. In the pellet production step S1, a mixture is obtained by mixing raw materials that contain at least a nickel oxide ore and a carbonaceous reducing agent. In the reduction step S2, a furnace floor carbonaceous reducing agent is laid on the floor of the smelting furnace in advance when placing the obtained pellets in the smelting furnace and the pellets are placed on the furnace floor carbonaceous reducing agent and then reduced and heated.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 26, 2017
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Publication number: 20170291455
    Abstract: Provided is a motorcycle tire having improved wet performance during straight running without compromising other performances. The motorcycle tire is a motorcycle tire whose rotation direction when mounted on a vehicle is designated.
    Type: Application
    Filed: June 8, 2015
    Publication date: October 12, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Junichi TAKAHASHI, Mitsunori UCHIDA
  • Patent number: 9784940
    Abstract: There is provided a lens barrel capable of suppressing deformation of a rear frame upon application of a radial inward force to the rear frame. The lens barrel is a lens barrel attachable to a camera body. The lens barrel includes a lens mount mechanically or electrically connected to the camera body, a fixed frame fixed to the lens mount, and a rear frame that covers an outer periphery of the fixed frame. The rear frame has a tubular portion and flanges that extend from a front end and a rear end of the tubular portion radially inward, and at least a part of a radial inner end of the flange is brought into contact with the fixed frame.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 10, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Fumio Shinano, Junichi Takahashi, Hiroshi Kurumatani
  • Patent number: 9752210
    Abstract: A method for smelting a nickel oxide ore, wherein the reduction step progresses effectively while maintaining the strength of the pellets, comprises: a pellet production step S1 for producing pellets from a nickel oxide ore; and a reduction step S2 for reducing and heating the obtained pellets in a smelting furnace at a predetermined reduction temperature. In the pellet production step S1, a mixture is formed by mixing materials including said nickel oxide ore without mixing a carbonaceous reducing agent, and the pellets are formed by agglomerating said mixture. In the reduction step S2, in charging the obtained pellets into the smelting furnace, a carbonaceous reducing agent is spread in advance over the furnace floor of the smelting furnace and the pellets are placed on the carbonaceous reducing agent, and the pellets are reduced and heated in a state where the pellets are covered by the carbonaceous reducing agent.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 5, 2017
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Publication number: 20170211166
    Abstract: Provided is a method for producing pellets by which, when nickel oxide ore is being pelletized and smelted to produce ferronickel, which is an iron-nickel alloy, it is possible to allow the smelting reaction to proceed effectively. A method for producing pellets according to the present invention is for producing pellets which are used in producing iron-nickel alloy and which are produced by mixing raw materials including nickel oxide ore and agglomerating the resulting mixture, wherein the method comprises: a mixing step S11 for mixing at least nickel oxide ore, a carbonaceous reducing agent, and iron oxide to generate a mixture; and a pellet formation step S12 for agglomerating the resulting mixture and forming pellets. In the mixing step S11, the mixture is generated such that the total weight of nickel and iron accounts for 30 wt % or more of the total weight of the pellets formed.
    Type: Application
    Filed: June 30, 2015
    Publication date: July 27, 2017
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Publication number: 20170204496
    Abstract: Provided is a method for smelting nickel oxide ore by which the occurrence of cracking due to heat shock can be suppressed when nickel oxide ore is pelletized and charged into a smelting step (reduction step). A method for smelting nickel oxide ore according to the present invention uses pellets of nickel oxide ore, the method being characterized by comprising a pellet production step S1 for producing pellets from nickel oxide ore, and a reduction step S2 for heating the resulting pellets at a predetermined reduction temperature in a reduction furnace, the reduction step S2 comprising preheating the pellets obtained in the pellet production step S1 to a temperature of 350 to 600° C. in the reduction furnace and thereafter charging the pellets into the reduction furnace and raising the temperature of the reduction furnace to the reduction temperature.
    Type: Application
    Filed: June 30, 2015
    Publication date: July 20, 2017
    Inventors: Junichi Takahashi, Taku Inoue, Shuuji Okada
  • Publication number: 20170204495
    Abstract: A method for smelting nickel oxide ore according to the present invention uses pellets of nickel oxide ore and is characterized by comprising: a pellet production step S1 for producing pellets from nickel oxide ore; a reduction step S2 for heating the resulting pellets at a predetermined reduction temperature in a reduction furnace to obtain a mixture of iron-nickel alloy and slag; and a separation step S3 for separating out and recovering the iron-nickel alloy form the resulting mixture, the separation step S3 comprising the creation of pulverized matter by pulverizing the mixture so that at least the slag becomes smaller than 2 mm, and sorting the resulting pulverized matter with a magnetic force of 300 to 600 gauss.
    Type: Application
    Filed: July 10, 2015
    Publication date: July 20, 2017
    Inventors: Junichi TAKAHASHI, Taku INOUE, Shuuji OKADA
  • Patent number: D810659
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: February 20, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takamitsu Nakamura, Junichi Takahashi
  • Patent number: D810660
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: February 20, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Takamitsu Nakamura, Junichi Takahashi