PATENT



* Procedures for obtaining Patent right (flow chart) *

  1. Paris-Route / Non-Convention Application
  2. National Phase Application from PCT Application

A) Paris-Route / Non-Convention Application

Patent_Paris-Route / Non-Convention Application

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B) National Phase Application from PCT Application

Patent_National Phase Application from PCT Application

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* Our Services *


Prosecution:

The attorney and engineers at KOSHIKAWA & Co. have extensive experience in prosecuting patents in all fields of technology. Our capabilities and expertise allow us to represent and procure patents for a wide variety of Fortune 100 of Companies, universities; governmental organizations, small and mid-size companies and solo inventors. Additionally, our offices are fully compatible with the Japan Patent Office’s latest electronic filing regulations and can provide our clients with the electronic documents and conversions necessary to file and prosecute patents. We pride ourselves on our thorough knowledge of the patent examination process and maintain a variety of active patent portfolio for clients desiring varying levels of service.


Litigation:

The attorney and engineers at KOSHIKAWA & Co. have extensive experience working on a variety of patent litigation and pre-litigation matters. In particular, these include analyzing the patent(s) and prosecution history, conducting infringement analysis, conducting validity analysis. We have provided patent counsel to domestic and foreign corporations, universities and organizations, successfully resolving patent litigation conflicts. Additionally, with our far-reaching technical expertise and knowledge of patent law, we are capable of formulating a variety of offensive and defensive tools that can be tailored to suit your business needs and those dictated by the litigation and business environment.


Opinions:

KOSHIKAWA & Co.’s attorney and engineers can provide detailed patent opinions in all fields of technology. We have prepared opinions, including patentability opinions, clearance opinions, validity opinions, invalidity opinions and infringement opinions and non-infringement opinions for a wide variety of diverse clients. We pride ourselves on our comprehensive and complete analysis of your patent, application, invention or idea and any prior, contemporary or new technology or art and utilize our experience in both the public and private sectors of intellectual property law to provide clear and definitive opinions.


Patent Search:

KOSHIKAWA & Co.’s attorney and engineers have extensive backgrounds in patent searching. Our staffs are professional searchers who provide detailed and accurate searches in every field of technology. Additionally, we can provide in-depth analysis of your search results and work with you to fit your idea or invention to better overcome prior art. Our patent searches provide a detailed outline of the relevant domestic and foreign prior art, including patents, published applications and other published documents when desired. These patent searches may be used to educate clients about the known prior art and technology as well as provide competitive intelligence regarding potential competitors, infringers and licensees.

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* Filing Requirements *

For filing a Japanese patent application, the following documents/information are required.

  1. Paris-Route / Non-Convention Application
  2. National Phase Application from PCT Application

A) Paris-Route / Non-Convention Application

  1. Invention
    1. Specification
    2. Claims
    3. Abstract
    4. Drawings (if needed)

  2. Applicant
    1. Full name
    2. Full address
    3. Nationality

  3. Inventor(s)
    1. Full name
    2. Full address

  4. Filing Detail
    1. Filing date (Priority filing date if any)
    2. Serial number and the name of the country of the basic application, if the application is a Convention case (Serial number can be submitted later, if it is not available at the time of filing.).
    3. Certified copy of priority document (This document has to be filed within sixteen months from the priority date. No extension is possible.).

  5. Power of Attorney form
    (which should be executed by a representative of the applicant. No legalization or notarization is necessary.)
    1. Our receipt of an executed Power of Attorney ensures that we received an explicit legal authorization of the entrusted case from our client, and
    2. Please refer Sample on Power of Attorney menu if needed. (Download)



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B) National Phase Application from PCT Application

  1. A copy of the International Publication (Cover Page for information, Specification, Claims, Abstract and Drawings)
  2. PCT Article 19 amendment and/or PCT Article 34 amendment, if any
    Note:
    Regarding (1) & (2), it is possible to file a Japanese translation of the application within two months from the entry into the Japanese national phase. In this case, we first need to enter the Japanese national phase by filing a National Form Paper.
  3. A copy of the International Preliminary Examination Report, if any
  4. Power of Attorney form (which should be executed by a representative of the applicant. No legalization or notarization is necessary.)
    (Please see the Note of the above item A(5).)
  5. Please refer Sample on Power of Attorney menu if needed. (Download)



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* Legal Fees *

PATENT APPLICATIONS (including PCT National Stage Work)
Official Fee (JPY)Attorney Fee (JPY)
Filing an application15,000180,000
Claiming Convention priority or internal priority
  1. Basic Fee (single claim)
  2. Charge per additional claim

  • 0
  • 0

  • 8,000
  • 6,000
Filing Request for Examination (update : August 2011)
  1. Basic fee
  2. If the ISR has been established by JPO (under the PCT)
  3. If the ISR has been established
    by Intl. Searching Authority other than the JPO (under the PCT)
  4. If the Search Report has been established
    by a designated organization

  • 118,000 + 4,000 per claim
  • 71,000 + 2,400 per claim

  • 106,000 + 3,600 per claim

  • 94,000 + 3,200 per claim

  • 17,000
  • 17,000

  • 17,000

  • 17,000
Argument 0 90,000
Amendment 0 90,000
Basic Registration fees and annuities
(for patent applications requested for examination on or after April 1, 2004)

1st - 3rd year

  1. Basic fee (single claim)
  2. Charge per additional claim

4th - 6th year (each year)

  1. Basic fee (single claim)
  2. Charge per additional claim

7th - 9th year (each year)

  1. Basic fee (single claim)
  2. Charge per additional claim

10th - 25th year (each year)

  1. Basic fee (single claim)
  2. Charge per additional claim




  • 7,500
  • 600


  • 7,600
  • 500


  • 23,100
  • 1,700


  • 66,400
  • 4,800




  • 25,000
  • 0


  • 10,000
  • 0


  • 11,000
  • 0


  • 12,000
  • 0
Basic Registration fees and annuities
(for patent applications requested for examination on or before March 31, 2004)

1st - 3rd year

  1. Basic fee (single claim)
  2. Charge per additional claim

4th - 6th year (each year)

  1. Basic fee (single claim)
  2. Charge per additional claim

7th - 9th year (each year)

  1. Basic fee (single claim)
  2. Charge per additional claim

10th - 25th year (each year)

  1. Basic fee (single claim)
  2. Charge per additional claim




  • 37,200
  • 3,000


  • 19,300
  • 1,400


  • 38,600
  • 2,800


  • 77,200
  • 5,600




  • 25,000
  • 0


  • 10,000
  • 0


  • 11,000
  • 0


  • 12,000
  • 0

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