Patents by Inventor Hitoshi Saga

Hitoshi Saga 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).

  • Process for preparing .alpha.-thujene
    Patent number: 4374292
    Abstract: .alpha.-Thujene is prepared in high yields by isomerizing 1 mole of sabinene with 0.2 to 0.5 moles of an alkali metal, preferably lithium and 0.3 to 0.8 moles of a primary or secondary amine, preferably ethylenediamine. Formation of by-products such as p-cymene is minimized.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: February 15, 1983
    Assignee: Lion Corporation
    Inventors: Haruhiko Toda, Moriaki Higo, Hitoshi Saga, Masafu Shinbo
  • Process for preparation of .beta.-bourbonene
    Patent number: 4089764
    Abstract: A process for preparing .beta.-bourbonene which comprises irradiating internally or externally an essential oil containing germacrene D, such as ylang-ylang oil, cananga oil, the essential oil of Solidago altissima L., the essential oil of Solidago gigantea Aiton var. leiophylla Fern., with the light of low pressure or high pressure mercury lamp to obtain .beta.-bourbonene.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: May 16, 1978
    Assignee: The Lion Dentifrice Co., Ltd.
    Inventors: Moriaki Higo, Hitoshi Saga, Yoji Watanabe, Kunitomo Suzuki