Aikido of Raritan Valley / Ren Sei Kan dojo

03/24/2026

Farewell sensei.

Send a message to learn more

03/15/2026

https://www.facebook.com/share/1BtDMzrcA9/

03/12/2026

Many thanks to Brian Crismas at bcrismas woodworking on Etsy for a great job with our custom tanto for our 20th anniversary. American white oak.

03/08/2026

Very sad, I remember his classes well.
https://www.facebook.com/share/p/17pVnc4Sok/

02/14/2026

https://www.facebook.com/share/1HcXUeKNgA/

"Kobayashi Hirokazu, direct student of O'Sensei, 8th dan. „Forgotten” Aikikai Shihan. His unique transmission is the basis of the aesthetic and effective Kobayashi Ryu Aikido style, developed today by Kokusai Aikido Kenshukai - the international organization in which the Aikido Foundation is affiliated. On his birthday (February 14, 1929) we are trying to give more light to the life and personality of this Kagemusha (Shadow Master) who showed the most enlightining Aikido. " - Robert Gembal Shihan, 8 dan.

小林裕和氏は (14.02.1929)。彼の教えはヨーロッパや他の大陸でも多くの人に大きな影響を与え、合気道の発展へと繋がりました。そして、その後大日本武徳会は小林流を正式的に認めました。我々は小林氏の意思を引き継いで合気道財団で指導を行っております。

Kobayshi Hirokazu Sensei urodził się 14 lutego 1929 roku. Wywarł ogromny wpływ na rozwój Aikido w Europie oraz na innych kontynentach. Pamiętamy o nim i kontynuujemy jego przekaz w ramach Aikido Kobayashi Ryu - stylu uznanego dzisiaj także przez najstarszą japońską organizację wartości wojennych Dai Nippon Butoku Kai.

Aikido Foundation Kobayashi Ryu

Kobayshi Hirokazu Sensei was born on 14th of February 1929. He exerted a huge influence on the development of Aikido in Europe and on other continents. We remember him and continue his message as part of Aikido Kobayashi Ryu – style recognized today by Dai Nippon Butoku Kai – the oldest Japanese martial arts organization.

Aikido Foundation

Хироказу Кобаяси Сэнсэй *14.02.1929 г. Он оказал огромное влияние на развитие айкидо в Европе и на других континентах. Помним о нем и продолжаем его традицию в рамках Айкидо Кобаяси Рю - стиля признанного старейшей японской организацией боевых искусств Дай Ниппон Бутоку Кай.

Aikido Foundation Кобаяси Рю

02/03/2026

https://youtu.be/bYn8cMGF3pU?si=aXpf36GTvG624Bt9

Doshu taught on July 31, 2025 at our 60th Anniversary Camp in Galloway, NJ. This video records his remarks and techniques.

01/23/2026

01/11/2026

https://www.facebook.com/share/v/1Fz649MejM/

01/09/2026

https://www.instagram.com/reel/DTOOJzXkuu2/?igsh=djd5cXVyN3IyNGpx

12/24/2025

https://youtu.be/sy5imP3Z-5M?si=-Rk44TlVDC2l6h_8

You can see me, Jeff Lorenz , Frank Mondoro , Massimo and afew others 20 years ago.

Christening Seminar for Aikido Centers new headquarters dojo in East Hanover, NJ in 2006 featuring Aikido Centers chief instructor Greg O'Connor and Capital ...

11/21/2025

https://www.facebook.com/share/17HkqwnGrg/

With a heavy heart I must share some unimaginable news. Derrell Thomas Sensei had a massive heart attack two days ago. The damage was too severe and, as a result, he passed away this evening surrounded by his family. He was a very young 52 years old. There are just no words.

The world lost a beautiful soul, a great spirit, an amazing teacher, and one of my dearest friends.

Please keep his family in your prayers.

We will share information about his arrangements.
Godspeed Derrell. I love you and will miss you. Rest in peace.