Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10699057 | System and method for controlling information presented to user referring to contents | Miaomei LEI, Toshinori Miyoshi, Hiroki Sato | 2020-06-30 |
| 8046368 | Document retrieval system and document retrieval method | Hiroko Ohi, Kiyohiro Obara | 2011-10-25 |
| 7693910 | Method of searching documents and a service for searching documents | Makoto Iwayama, Shingo Nishioka, Akihiko Takano | 2010-04-06 |
| 7590651 | Search apparatus | Masakazu Fujio, Shigeo Sumino | 2009-09-15 |
| 7277881 | Document retrieval system and search server | Osamu Imaichi, Toru Hisamitsu, Makoto Iwayama, Shingo Nishioka | 2007-10-02 |
| 7065518 | Search system | Shingo Nishioka, Toru Hisamitsu, Makoto Iwayama, Osamu Imaichi | 2006-06-20 |
| 6850937 | Word importance calculation method, document retrieving interface, word dictionary making method | Toru Hisamitsu | 2005-02-01 |
| 6745183 | Document retrieval assisting method and system for the same and document retrieval service using the same | Shingo Nishioka, Makoto Iwayama, Kazuhiro Ono, Akihiko Takano, Atsuko Yamaguchi | 2004-06-01 |
| 6654738 | Computer program embodied on a computer-readable medium for a document retrieval service that retrieves documents with a retrieval service agent computer | Shingo Nishioka, Makoto Iwayama, Kazuhiro Ono, Akihiko Takano, Atsuko Yamaguchi | 2003-11-25 |
| 6584460 | Method of searching documents and a service for searching documents | Makoto Iwayama, Shingo Nishioka, Akihiko Takano | 2003-06-24 |
| 6457004 | Document retrieval assisting method, system and service using closely displayed areas for titles and topics | Shingo Nishioka, Makoto Iwayama, Kazuhiro Ono, Akihiko Takano, Atsuko Yamaguchi | 2002-09-24 |
| 6446065 | Document retrieval assisting method and system for the same and document retrieval service using the same | Shingo Nishioka, Makoto Iwayama, Kazuhiro Ono, Akihiko Takano, Atsuko Yamaguchi | 2002-09-03 |
| 5987460 | Document retrieval-assisting method and system for the same and document retrieval service using the same with document frequency and term frequency | Hirofumi Sakurai | 1999-11-16 |