Inventor
Takaaki Toyama
Inventor
Fujisawa, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication47%
H04QSelecting20%
C01GCompounds containing metals not covered by subclasses c01d or c01f7%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds7%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy7%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%
Y02TClimate change mitigation technologies related to transportation7%
PatentTitleYear
11,011,751Positive electrode active material for lithium ion secondary battery, manufacturing method thereof, and lithium ion secondary battery20218,040,872'Frame forwarding apparatus'20117,035,264'Communication network system and method for synchronously controlling path connection'20066,603,767'Cell exchanging device'20036,597,696'Variable length packet switch'20036,556,567'Method and system for multiplexing packets'20036,507,584'ATM switch'20036,034,954'Multiplexing apparatus for transit of signals between service provided by low-speed transmission path and ATM service provided by high-speed transmission path'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2011Patents assigned to HITACHI LTD (7)· patent assignee history
2000–2006Based in Fujisawa, JP· patent location history
2003Based in Kanagawa, JP· patent location history
2006Patents assigned to NTT COMM CORP (1)· patent assignee history
2011Based in Kawasaki, JP· patent location history
2021Patents assigned to HITACHI METALS LTD (1)· patent assignee history
2021Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 7 | 2000–2011 |
| HITACHI METALS LTD | 1 | 2021 |
| NTT COMM CORP | 1 | 2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fujisawa, JP | 4 | 2000–2006 |
| Kanagawa, JP | 2 | 2003 |
| Tokyo, JP | 1 | 2021 |
| Kawasaki, JP | 1 | 2011 |