Patents Assigned to Ichiya Hayakawa
  • Pulsed-DC ionizer
    Patent number: 5249094
    Abstract: An ionizer having a pair of electrodes for generating ions by corona discharge when a pulsed DC voltage is applied thereto, wherein each electrode is covered with a microporous glass tube. Release of fine particles is thereby substantially eliminated, the generation of ions not being decreased.
    Type: Grant
    Filed: March 21, 1991
    Date of Patent: September 28, 1993
    Assignees: Asahi Glass Company Ltd., Techno Ryowa Ltd., Ichiya Hayakawa
    Inventors: Ichiya Hayakawa, Kazuo Nakamura, Masanori Suzuki