Patents by Inventor Tadashi Hishida

Tadashi Hishida 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: 4423540
    Abstract: A simple method of manufacturing a bearing housing coaxially accommodating two bearings is proposed. A male mold with a core and a female mold are used. A fluid synthetic resin is inserted into a space left between the male mold and the female mold to form a bearing housing. This method assures that two bearings are exactly coaxial with each other.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: January 3, 1984
    Inventor: Tadashi Hishida
  • Patent number: 4349625
    Abstract: There is disclosed a method for assaying fatty acids in a system containing albumin together with the fatty acids using acyl-CoA synthetase, characterized by performing the assay in the presence of a water-soluble salt of a dibasic fatty acid having 10 to 18 carbon atoms or a benzenesulfonate optionally having one or more C.sub.1 -C.sub.5 side chains.
    Type: Grant
    Filed: April 30, 1980
    Date of Patent: September 14, 1982
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Tsutomu Okada, Tadashi Hishida, Minoru Muramatsu
  • Patent number: 4337405
    Abstract: An electric generator to be mounted on an agricultural tractor or the like is proposed, in which a rotor and its related parts and a stator and its related parts are molded of plastics into integral units, respectively. The construction is much simpler than that of the conventional generators.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: June 29, 1982
    Inventor: Tadashi Hishida
  • Patent number: 4266634
    Abstract: A braking device including a circular rotor coaxially fixed to the shaft of a rotary machine, a brake drum made of a material for elastic deformation and mounted on the rotor, and rollers interposed between the circular rotor and the brake drum. The rollers are adapted for rotation around the axis of the rotor as long as the brake drum maintains circularity, and adapted to be locked between the rotor and the brake drum when the brake drum is caused to deviate from circularity.
    Type: Grant
    Filed: July 13, 1979
    Date of Patent: May 12, 1981
    Assignee: V.I.V. Engineering Co., Ltd.
    Inventor: Tadashi Hishida
  • Patent number: 4205127
    Abstract: There is disclosed a process for the renewal of a deactivated insolubilized glucose isomerase which comprises subjecting an insolubilized glucose isomerase adsorbed onto an anion exchange resin, which has been used for isomerization of glucose into fructose to decrease its activity, to treatments by an aqueous mineral acid solution in combination with an aqueous alkaline solution, an aqueous electrolytic salt solution, an aqueous mineral acid or a mixture thereof to release adsorbed materials from the resin which is converted into a salt type and adsorbing fresh glucose isomerase to the regenerated resin to recover the activity of the insolubilized glucose isomerase.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: May 27, 1980
    Assignees: Mitsubishi Chemical Industries, Limited, Seikagaku Kogyo Company, Ltd.
    Inventors: Yoshimasa Fujita, Akiyoshi Matsumoto, Isao Miyachi, Nobuo Imai, Isao Kawakami, Tadashi Hishida, Akira Kamata
  • Patent number: 4113568
    Abstract: There is disclosed a process for the renewal of a deactivated insolubilized glucose isomerase which comprises subjecting an insolubilized glucose isomerase adsorbed onto an anion exchange resin, which has been used for isomerization of glucose into fructose to decrease its activity, to treatments by an aqueous mineral acid solution in combination with an aqueous alkaline solution, an aqueous electrolytic salt solution, an aqueous mineral acid or a mixture thereof to release adsorbed materials from the resin which is converted into a salt type and adsorbing fresh glucose isomerase to the regenerated resin to recover the activity of the insolubilized glucose isomerase.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: September 12, 1978
    Assignees: Mitsubishi Chemical Industries, Ltd., Seikagaku Kogyo Co., Ltd.
    Inventors: Yoshimasa Fujita, Akiyoshi Matsumoto, Isao Miyachi, Nobuo Imai, Isao Kawakami, Tadashi Hishida, Akira Kamata
  • Patent number: 4106993
    Abstract: A method for preservation of an aqueous glucose isomerase solution is disclosed in which an aqueous glucose isomerase solution is mixed with a an alkaline material to adjust its pH value within a range of from 9 to 12 whereby the aqueous solution can be stored at room temperature for a period not less than three days without microbial contamination, putrefaction, denaturation and deactivation of the glucose isomerase.
    Type: Grant
    Filed: March 15, 1977
    Date of Patent: August 15, 1978
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Tetsuya Hirota, Tadashi Hishida, Akira Kamata, Isao Nakazawa, Hiroshi Takamisawa
  • Patent number: 4078970
    Abstract: There is disclosed a process for producing an insolubilized glucose isomerase useful for converting glucose into fructose comprising contacting a macroporous anion exchange resin with glucose isomerase to effect absorption of the isomerase on the resin, said resin having high porosity and high ion exchange capacity, whereby the resulted insolubilized glucose isomerase has high degree of adsorption, high activity retention and high activity yield.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: March 14, 1978
    Assignees: Mitsubishi Chemical Industries Ltd., Seikagaku Kogyo Co., Ltd.
    Inventors: Yoshimasa Fujita, Akiyoshi Matsumoto, Isao Kawakami, Tadashi Hishida, Akira Kamata, Yusuke Maeda
  • Patent number: 4025135
    Abstract: A bearing assembly is disclosed which includes a ball bearing, a cover secured to the outer race of the bearing, and a synthetic resin molded member formed on the cover by injection molding. This bearing design reduces the necessity of machining substantially and is therefore suited for mass production.
    Type: Grant
    Filed: August 12, 1975
    Date of Patent: May 24, 1977
    Assignee: Wada Seiko Kabushiki Kaisha (Wada Seiko Co., Ltd.)
    Inventor: Tadashi Hishida
  • Patent number: 4008124
    Abstract: There is disclosed a process for isomerization of glucose into fructose which comprises contacting an aqueous glucose solution with glucose isomerase in the presence of iron ion and magnesium ion, said glucose isomerase being in the form of insolubilized glucose isomerase adsorbed on a carrier.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: February 15, 1977
    Assignees: Mitsubishi Chemical Industries Ltd., Seikagaku Kogyo Co., Ltd.
    Inventors: Yoshimasa Fujita, Akiyoshi Matsumoto, Hachiro Ishikawa, Tadashi Hishida, Hideo Kato, Hiroshi Takamisawa
  • Patent number: 3990136
    Abstract: There is provided a method for producing revolving parts, such as sprockets, gears and pulleys, for light loads. A metallic annular member formed with notches in its inner periphery is mounted on a bearing. A boss is molded on each side of the annular member by use of a mold to secure the annular member to the outer race of the bearing. Engaging means formed in the outer periphery of the outer race of the bearing serve to make the annular member integral with the outer race.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: November 9, 1976
    Assignee: Wada Seiko Kabushiki Kaisha (Wada Seiko Co., Ltd.)
    Inventor: Tadashi Hishida