Average Co-Inventor Count = 1.50
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Kato Hatsujo Kaisha, Ltd. (1 from 47 patents)
2. Kabushiki Kaisha Mihama Seisakusho (1 from 9 patents)
3. Yugen Kaisha Aoi Shoji (1 from 1 patent)
4. Mihama Manufacturing Co., Ltd. (1 from 1 patent)
2 patents:
1. 5179943 - Medical apparatus using ozone gas
2. 4395210 - Apparatus for manufacture of turbulence member made of synthetic resin