Average Co-Inventor Count = 2.72
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. Yuyama Mfg. Co., Ltd. (5 from 249 patents)
2. Kabushiki Kaisha Yuyama Seisakusho (1 from 50 patents)
6 patents:
1. 7500337 - Medicine packaging device
2. 6981609 - Injection drug feeding device
3. 6789996 - Medicine feed apparatus
4. 6789696 - Multi-connected ampoules dispensing apparatus
5. 6726056 - Medicine feed apparatus
6. 6305526 - Ampule transfer unit