Average Co-Inventor Count = 1.59
ph-index = 4
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. Matsui Manufacturing Co., Ltd. (3 from 15 patents)
2. Kabushikikaisha Matsui Seisakusho (2 from 33 patents)
3. Kyowa Hakko Kogyo Co., Ltd. (1 from 730 patents)
5 patents:
1. 6163976 - Vacuum-type automatic dehumidifying and drying apparatus for powdered or
2. 5442826 - Apparatus for cleaning the inside of a pipe
3. 5398557 - Rotary sampling apparatus for powdered or granular materials
4. 4848990 - Dust collector adapted for use in a hopper dryer
5. 4354776 - Pressurized gas transporter and method