Company Information, List of Patents : HOWA Corporation

Company Information

List of Patents

List of Registered Patents

  1. Registration Number
    Patent Number 4363774
    Title of Invention
    Process of manufacture of whisker wrinkle patterned fiber product
    Overview
    Method of processing vintage including wrinkle patterned textile goods
  2. Registration Number
    Patent Number 4236636
    International Registration Number
    7252688 (The US), 1518995 (Spain, Italy, Turkey), 1074065B (Hong Kong), ZL02828979.X (China), 10-0647251 (Korea)
    Title of Invention
    Decolorization apparatus and decolorization method for textile product
    Overview
    Decolorization method and decolorization equipment of textile products using ozone
  3. Registration Number
    Patent Number 4160430
    Title of Invention
    Impregnating treatment and impregnating treatment apparatus in supercritical carbon dioxide
    Overview
    Method of reducing the mixing of air and water in carbon dioxide during impregnation
  4. Registration Number
    Patent Number 4149854
    Title of Invention
    Manufacturing of impregnated textile product and impregnation treatment method
    Overview
    Impregnation treatment method that can reduce the equipment cost and ensure uniform impregnation by supercritical carbon dioxide
  5. Registration Number
    Patent Number 4022449
    Title of Invention
    Method of forming patterns
    Overview
    Novel method of forming patterns with ozone gas
  6. Registration Number
    Patent Number 4022436
    Title of Invention
    Method of bleaching pattern formation
    Overview
    Offer of dye clothes which have bleaching pattern of irregularity part with ozone gas
  7. Registration Number
    Patent Number 3907429
    Title of Invention
    Dyeing Method
    Overview
    Dyeing method by which irregularity can be controlled when dyeing in supercritical fluid, improvement of work efficiency, control of device cost, and reduction of energy consumed
  8. Registration Number
    Patent Number 3860434
    Title of Invention
    Dyeing Method
    Overview
    Method of processing plant dye dyed at the same time as extracting natural pigment from flora and fauna with supercritical fluid
  9. Registration Number
    Patent Number 3232010
    Title of Invention
    Method of bleaching dyed fiber
    Overview
    Method of bleaching reduction with sugar of cellulose system fiber product such as denim
  10. Registration Number
    Patent Number 2983179
    Title of Invention
    Method of bleaching textile goods
    Overview
    Decolorization of textile good using laser
  11. Registration Number
    Patent Number 2010650
    Title of Invention
    Method of forming bleaching pattern of dyed fiber
    Overview
    Bleaching method of obtaining the bleaching pattern by the moisture adhesion amount difference in the dyed fiber by using ozone.
  12. Registration Number
    Patent Number 4560352
    Title of Invention
    Water repellent agent impregnation treatment method of natural leather
    Overview
    Impregnation treatment method that does not ruin the texture of leather product.
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Unexamined Published Patents

  1. Publication Number
    Japanese Published Unexamined Application No 2007-197430
    Title of Invention
    Extraction method and skin external application medicine of purple root extract
    Overview
    Extraction method of purple root extract without color turbidness suppressing the odor
  2. Publication Number
    Japanese Published Unexamined Application No 2002-201575
    Title of Invention
    Method of dyeing cellulosic fiber
    Overview
    Method of dyeing cellulosic fiber and needlework goods by using reaction and decentralization dyestuff in supercritical and high-pressure carbon dioxide system
  3. Publication Number
    Japanese Published Unexamined Application No 2002-201570
    Title of Invention
    Method of giving functionality to fiber
    Overview
    Method of giving functionality to textile material such as fiber cloths and fiber needlework goods without burdening the environment with exhaust such as waste fluids