Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12323531 | Communication apparatus and communication method to check data and publish a check result in a blockchain network | — | 2025-06-03 |
| 11843701 | Computer-readable recording medium storing generation program for generating aggregation hash value by aggregating hash values for blocks of content, and generation apparatus for generating aggregation hash value by aggregating hash values for blocks of content | — | 2023-12-12 |
| 10409992 | Investigation apparatus, computer-readable recording medium, and investigation method | Kouiohi Itoh | 2019-09-10 |
| 10025784 | Similarity determination apparatus, similarity determination method, and computer-readable recording medium | Kouichi Itoh | 2018-07-17 |
| 8997183 | Outgoing email check system, check data providing apparatus, check data inspecting apparatus, and outgoing email check method | Ryota Fukasawa, Aya Higashizono, Natsu Hashisaka, Masayoshi Okamoto, Kiyoshi Kurashige +3 more | 2015-03-31 |
| 8925046 | Device, method, and recording medium | Takao Ogura | 2014-12-30 |
| 8095608 | Email wrong transmission preventing apparatus and method | Ryota Fukasawa, Aya Higashizono, Natsu Hashisaka, Masayoshi Okamoto, Kiyoshi Kurashige +2 more | 2012-01-10 |
| 7392468 | Document delivery device, document receiving device, document delivery method, document delivery program, and document delivery system | Nobuyuki Igata, Yoshio Nakao | 2008-06-24 |
| 6845377 | Retrieval system and method using distance index | Yasuo Yamane | 2005-01-18 |
| 5724581 | Data base management system for recovering from an abnormal condition | — | 1998-03-03 |