Hitachi, Ltd Patent Portfolio Statistics

Hitachi, Ltd.

Profile Summary

This article summarizes the perfomance of the assignee in the recent years. The overall statistics for this portfolio help to analyze the areas where the assignee is performing well. The filing trend, perfomance across the tech centers and the perfomance of the recent applications has been mentioned below. All the stats are calculated based on the perfomance in USPTO.

How does the overall patent portfolio of Hitachi, Ltd. look like?

Total Applications: 29,498
Granted Patents: 22,287
Grant Index 78.27 %
Abandoned/Rejected Applications: 6,187 (21.73%)
In-Process Applications: 1,001
Average Grant Time: 2.86 Years
Average Office Actions: 1.37

Which Technology Area Hitachi, Ltd. is filing most patents in? (Last 10 years)

Art Unit Definition Total Applications
2627 Selective Visual Display Systems 545
2818 Semiconductors/Memory 534
3747 Thermal & Combustion Technology, Motive & Fluid Power Systems 475
2871 Optics 458
2881 Optics 452

How many patents are Hitachi, Ltd. filing every year?

Year Total Applications
2022 1*
2021 324*
2020 605
2019 586
2018 601

*The drop in the number of applications filed in last two years compared to previous years is because applications can take up to 18 months to get published

Recently filed patent applications of Hitachi, Ltd. in USPTO?

Publication number:
Application number: 17/420,075


Publication date:
Applicant: Hitachi, Ltd.
Inventors: Hiroaki Konoura

Publication number:
Application number: 17/285,403


Publication date:
Applicant: Hitachi, Ltd.
Inventors: Akira Kotabe

Publication number: US20220027239A1
Application number: 17/497,092

Provided is a storage system that performs inter-node movement of parity and reconfiguration of a stripe when a node configuration is changed. The storage system includes a plurality of nodes and a management unit, in which the nodes are targets for data write and read requests, form a stripe by a plurality of data stored in different nodes and parity generated based on the plurality of data, and store the parity of the stripe to which the data under the write request belongs in a node different from the plurality of nodes that store the plurality of data so as to perform redundancy; and the management unit transmits, to the node, an arrangement change request to perform the inter-node movement of the parity and the reconfiguration of the stripe when the node configuration is changed.

Publication date: 2022-01-27
Applicant: Hitachi, Ltd.
Inventors: Chiba Takeru

How are Hitachi, Ltd.’s applications performing in USPTO?

Application Number Title Status Art Unit Examiner
17/420,075 Database Management Service Provision System Application Undergoing Preexam Processing
17/285,403 Electronic Circuit And Sensor System Sent to Classification contractor OPAP Central, Docket
17/497,092 Storage System OPAP Central, Docket
17/496,980 Storage System And Control Software Deployment Method OPAP Central, Docket
17/495,941 Storage System And Storage Management Method OPAP Central, Docket