公开(公告)号：US20220122026A1

公开(公告)日：2022-04-21

申请号：US17646379

申请日：2021-12-29

Applicant: DENSO CORPORATION

Inventor： Tatsuya OKABE ,  Tousei KANEMATSU

IPC: G06Q10/08

Abstract: A supply chain management method for managing, using a blockchain, a trading record between traders that form a supply chain includes acquiring (i) first item data recorded on a first storage medium that is physically attached to an incoming item delivered to a first trader of traders and (ii) a node identification data assigned to the first trader. The supply chain management method includes calculating, as second item data, a hash value based on the first item data and the node identification data. The supply chain management method includes physically attaching, to an outgoing item, a second storage medium on which at least the second item data is recorded. The supply chain management method includes delivering the outgoing item to a second trader of the traders along with the attached second storage medium such that the second item data is transferred to the second trader.

公开(公告)号：US20220309458A1

公开(公告)日：2022-09-29

申请号：US17806641

申请日：2022-06-13

Applicant: DENSO CORPORATION

Inventor： Tatsuya OKABE ,  Yuka TAMURA ,  Shintarou HARA ,  Takakazu MURAKAMI

IPC: G06Q10/08

Abstract: A method of processing information related to a distributed item includes generating attachment information and acquiring a reference request and requester information. The attachment information is associated with history information accumulated for the distributed item and is to be distributed along with the distributed item. The reference request is made for a reference to the history information using the attachment information attached to the distributed item. The requester information contains at least location data of a requester terminal that made the reference request.

公开(公告)号：US20190260763A1

公开(公告)日：2019-08-22

申请号：US16279089

申请日：2019-02-19

Applicant: DENSO CORPORATION

Inventor： Tatsuya OKABE ,  Eiichi OKUNO ,  Takao NOJIRI

IPC: H04L29/06 ,  G06F16/23

Abstract: In a verification terminal for verifying properness of an information item composed of a data string, a storage unit stores an own-terminal information item comprised of a data string, and a verification value generation unit generates a hash value of the own-terminal information item stored in the storage unit as an own-terminal hash value. A verification value acquisition unit communicates with at least one other verification terminal that should store an other-terminal information item t to thereby acquire a hash value of the other-terminal information item from the at least one other verification terminal as an other-terminal hash value. The other-terminal information item is conditioned to be identical to the own-terminal information item. A verification execution unit verifies properness of the own-terminal information item in accordance with whether the own-terminal hash value is consistent with the other-terminal hash value.

公开(公告)号：US20220407705A1

公开(公告)日：2022-12-22

申请号：US17352897

申请日：2021-06-21

Applicant: DENSO CORPORATION

Inventor： Haolun HUANG ,  Tatsuya OKABE ,  Himank GUPTA

IPC: H04L9/32 ,  H04L9/08 ,  H04L9/06 ,  H04L29/08

Abstract: A mobility data storage method executed by a plurality of vehicles each including a sensor and a processor coupled to the sensor, the processor of each of the plurality of vehicles being configured to store a local blockchain, the method includes, with the processor of the plurality of vehicles, attaching a sensor data pool, a random value that excess a threshold, and a verifiable random function (VRF) proof to a respective candidate block then broadcasting the candidate block to all other vehicles. Then, a particular candidate block whose random value is largest among the broadcasted candidate blocks is selected and verified with the VRF proof prior to be attached to the local blockchain.

公开(公告)号：US20190273606A1

公开(公告)日：2019-09-05

申请号：US16288484

申请日：2019-02-28

Applicant: DENSO CORPORATION

Inventor： Tatsuya OKABE ,  Eiichi OKUNO ,  Takao NOJIRI

IPC: H04L9/06 ,  H04L9/32

Abstract: A verification terminal includes a storage unit that stores partial block data. The partial block data is the latest data that a part of block data for update and addition in chronological order. The verification terminal selects a plurality of approval terminals to approve the partial block data stored in the storage unit. When a transaction included in the partial block data stored in the storage unit is updated by the verification terminal, the verification terminal transmits an approval request that requests the selected approval terminals to approve the updated partial block data to which the updated transaction and a hash value of the partial block data before updating are added. The verification terminal executes an update process of the partial block data based on approval results returned from the approval terminals in response to the approval request transmitted by the approval requesting unit.