Average Co-Inventor Count = 3.00
ph-index = 3
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. Matsushita Graphic Communication Systems, Inc. (4 from 191 patents)
2. Matsushita Electric Industrial Co., Ltd. (1 from 27,375 patents)
3. Panasonic Communications Co., Ltd. (1 from 158 patents)
6 patents:
1. 7075675 - Memory management apparatus and communication apparatus
2. 6549297 - Communication apparatus and speech message method
3. 6411404 - Memory management device and communication apparatus comprising said memory management device
4. 6157460 - Memory management device and facsimile apparatus using the device
5. 5923827 - Facsimile apparatus using a memory management device having empty memory
6. 5598548 - Memory management device having empty memory block maintenance function