I attended DrupalCon San Francisco 2010 and worked one day Registration volunteer at April 17 Saturday. And at DrupalCon San Francisco 2010 April 21, I joined a meeting of DrupalCon Asia-Pacific Organizers Group.

I planed and sponsored Drupal 7 Release Party at Yokohama - City Japan in Jan.7, 2011 that organized by http://www.drupal7releaseparty.org/

joined Drupal Sprint and mentor contributions

joined DrupalCon Nashville 2018 first time Drupal Sprint
supported DrupalEuropa 2018 mentor contributions

joined the Promote Drupal Fund 2018

joined Promote Drupal Initiative by CMSLABO
https://www.drupal.org/promotedrupal

I organized Global Training Day in Yokohama City, Japan.

September 14, 2012 http://drupal.org/node/1789414
December 14, 2012 http://drupal.org/node/1915440
March 15, 2013 http://drupal.org/learn-drupal
June 14, 2013 http://drupal.org/learn-drupal
November 15, 2013 http://drupal.org/learn-drupal

We organize Global Training Day in Tokyo, Japan.

May 31, 2014 　What is Drupal? (half day)

https://drupal.org/learn-drupal
Nov 14, 2014 　What is Drupal? (half day)

https://drupal.org/learn-drupal
Feb 27, 2015 Intro to Drupal (full day)

https://drupal.org/learn-drupal
Aug 22, 2015 What is Drupal? (half day)

https://drupal.org/learn-drupal
report is http://cmslabo.org/drupal-global-training-days/2015/0822
9, 2016 What is Drupal? (full day)

https://drupal.org/learn-drupal
Sep 10, 2016 What is Drupal? (full day)

https://drupal.org/learn-drupal
Dec 3, 2016 What is Drupal? (full day)

https://drupal.org/learn-drupal
March 18, 2017 What is Drupal? (full day)

https://groups.drupal.org/global-training-days-2017
December 2, 2017 What is Drupal and intermediate hands on

https://groups.drupal.org/global-training-days-2018
Jan 27, Mar 17, Jun 16, Sep 22, Dec 8, 2018 What is Drupal and intermediate hands on

https://groups.drupal.org/global-training-days-2019
Feb 16, Apr 27, 2019 What is Drupal and intermediate hands on

We sponsored

DrupalCon Asia 2016 Bronze sponsor
DrupalCon New Orleans 2016 Bronze sponsor
DrupalCon Baltimore 2017 Bronze sponsor
DrupalCon Nashville 2018 Bronze sponsor as CMSLABO LLP

my DrupalCon BoF

DrupalCon New Orleans 2016 "Tourism and Story Marketing"
DrupalCon Dublin 2016 "Tourism and Story Marketing"
DrupalCon Nashville 2018 "Drupal and Tourism"

publishing

I wrote Drupal 7 beginners book by Japanese for Kindle. https://www.amazon.co.jp/dp/B01EFYRUAO