Search Services List

Prior Art Search

Global & Seamless Search

Technical Trend Analysis

Prior Art Search for Patent and Utility Model


List of Japanese databases are used such as JP-NET, JDreamV, SRPARTNER, HYPAT-i2, Orbit.com, Japio-GPG/FX and J-PlatPat depending on a technical field and a search object. According to need, we also set IPC by using J-PlatPat so as to read and select all the patent literatures included in that category (we call this type of search as manual search). Non-patent literatures will be searched by JDreamV.

1. Covered Documents

The published patent applications and utility model applications
(including registered utility models) are covered.


2. Term of Search

The published patent applications and published utility model applications (including registered utility models) are available up to the present.
It is possible to change the term in accordance with the technical field and the technical content.


3. Search Procedure

After carefully reviewing the technical content of the search, search strategies for J-PlatPat search are drawn up to narrow the final number of search results to from around 100 to 1000 references.
Then full texts of the hit references are carefully reviewed and references closely related with the object of the search will be reported as located references.


4. Reporting Style

We will locate at least one patent or utility model reference and report it together with the logical formulas for search and the copy of the located references.

・Report only the degree of similarity to the object of the search
・Report with comments comparing with the object of the search(Option)

*Reporting in a customized format is also available.

(Sample)

Kokai publication No. 2002-xxxxxx:
"Network connecting device and communication system"
Covering periods to be searched:
1983.1.1 〜 2002.9.4

References to be searched:
Japanese publication of patent and utility model applications

Search points:
(1) bus styled network connection is connected to both ends of network,
(2) transmits frame from one end of network, then receive the frame at other end of network within predetermined time,
(3) there are two items of communication equipments in network connection.

Multiple formulas will be applied eventually.
(Words of logical formula for interrogating IPDL)

1.フレーム and 受信 and ネットワーク
2.障害 or 故障 or 異常 or 回線断 or 断線
3.チェーン or リング or チェーン
No.1: Final Boolean formulas (1 and 2 and 3)
Hit patents (66 references)


1.ネットワーク and (障害 or 故障 or 異常 or 回線断 or 断線)
2.デジ or ディジ or ループ or チェーン or リング
3.フレーム
No.2: Final Boolean formulas (1 and 2 and 3)
Hit patents (100 references), utility model (0 references)


1.ネットワーク and (障害 or 故障 or 異常 or 回線断 or 断線)
2.ループ or チェーン or リング
3.一定時間 or 以内 or タイマ
No.3: Final Boolean formulas (1 and 2 and 3)
Hit patents (57 References), utility model (0 references)

Hit patent and utility model references should be investigated in terms of their full specifications and compared with the search subject.
Search Results
List of located references:
(1)JP2000-0115201  Omron(similarity: A)
(2)JP11-306109Fujidenki(similarity: B)
(3)JP06-164611Hashimoto Denshi     (similarity: B)
(4)JP06-006366Brother Kogyo (similarity: B)
(5)JP09-008835Fujitsu(similarity: C)