IPHub Services LLC

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provides Japanese Patent Firms with

Outsourced Assisting Services

to deal with

Outbound Patent Prosecution


To JP Patent Firms


Please consider IPHub if:

  • Your firm is short of patent engineers who can take charge of outbound patent filing/prosecution procedures
  • You need to contact unfamiliar overseas representatives in English
  • You just want to outsource drafting of office action comments for your Japanese clients and drafting of instruction letters to overseas representatives

Features of IPHub


  • An outbound patent engineer who has more than 20 years work experience in large to medium-sized international patent firms in Japan carefully handles your cases.
  • Patent applications of any countries can be handled.
  • Even small volume jobs such as drafting an inquiry letter are acceptable.
  • We do not directly contact clients of the patent firms we work with (unless so requested).


Masayuki Koizumi, Representative Partner

Email: koizumi.masayuki@iphub.co.jp


IPHub Services LLC

7th Fl., Mizunobu Bldg.
1-11-1 Kitasaiwai, Nishi-ku
Yokohama 220-0004




TEL (domestic):

TEL (overseas):

No sales solicitation please.

Jul 13, 2022
Dec 21, 2020
アイピーハブ・サービシーズ合同会社では、顧問弁護士および顧問税理士をつけています。 顧問弁護士静岡のぞみ法律特許事務所 弁護士・弁理士 坂野史子 顧問税理士戸村涼子税理士事務所 税理士 戸村涼子 それぞれ、ホームページの … "顧問弁護士および顧問税理士" の続きを読む
Dec 6, 2020
ホームページに会社概要、メンバー、プライバシーポリシー及び商標のセクションを追加しました。 Sections of Company Profile (only in Japanese), Members (details … "Website update ホームページ更新" の続きを読む
Dec 6, 2020
電話番号 045-555-8099 を代表番号(main number)として追加しました。代表番号による受信は、ボイスメール(留守電)に対応しています。 既存の電話番号045-550-7001も sub numberと … "New phone number added 新電話番号の追加" の続きを読む
Nov 22, 2020
We are pleased to announce that the domain name of our website and emails has been changed from “iphub.j … "Website & e-mail domain name change ホームページ及びEメールのドメイン名変更" の続きを読む


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Privacy Policy


Basic Approach

IPHub Services LLC (hereinafter referred to as "our company") collects information on the users of the our company website (https://iphub.co.jp and https://blog.iphub.co.jp directories; hereinafter referred to as "this site") to the extent necessary for the smooth operation of the services (provision of information via the website, receiving of inquiries and opinions, etc.) provided on the website. The collected information will be handled appropriately within the scope of the intended use.


Purpose of Use of Personal Information

Personal information we receive from customers is used to send emails and materials in response to inquiries and business announcements from our company.


Prohibition of Disclosure and Provision of Personal Information to Third Parties

Our company will not disclose the personal information we receive from customers to any third party except in the following cases:

•With the customer's consent

•Cases where our company discloses information to contractors in order to provide customers with desired services

•Cases where disclosure is required by laws and regulations

However, statistically processed access information and user attribute information of this site may be publicized.


Security Measures for Personal Information

Our company takes every possible security measure to ensure the accuracy and security of personal information.



This Privacy Policy applies only to this site.



If you have any questions regarding the handling of our company's personal information, please contact us at the following address.


IPHub Services LLC

7th Fl., Mizunobu Bldg.

1-11-1 Kitasaiwai, Nishi-ku

Yokohama 220-0004


Tel: +81-(0)45-555-8099 / +81-(0)45-550-7001

Email: hub@iphub.co.jp



The "IPHub" and "PatentHub" wordmarks are registered trademarks in Japan of our company representative partner Masayuki Koizumi.