Suggested citation format:
Ciolek, T. Matthew. 1995-present. Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Sotō-Rinzai Zen Buddhism and their Teachers (formerly Sanbo Kyodan: Harada-Yasutani School of Zen Buddhism and its Teachers). Canberra: www.ciolek.com - Asia Pacific Research Online.
http://www.ciolek.com/WWWVLPages/ZenPages/HaradaYasutani.html
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Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani
Schools of Sotō-Rinzai Zen Buddhism
and their Teachers
(with some quantitative data and descriptive statistics)

formerly (1995-2024) titled
Sanbo Kyodan: Harada-Yasutani School of Zen Buddhism and its Teachers

Est.: 13 Apr 1995. Title change: 30 Aug 2024; Last updated: 01 May 2026.

                                                   SCHOOL Lineages Teachers Est. The School Founder
            Part 1 of 3: The Harada Sogaku (@) Shikantaza+Koan School of Zen Buddhism  
8  34  Est. 1924?, in Tokyo? JP [1129]Harada, Daiun Sogaku (1871-1961)[8].
            Part 2 of 3: The Hakuun Yasutani (&) (aka Harada-Yasutani,
            aka Sanbo Kyodan, aka SanboZen) Shikantaza+Koan School of Zen Buddhism 		65  259  Est. 1954, in Kamakura JP [1073]Yasutani, Hakuun Ryōkō (1885-1973) [11]
            Part 3 of 3: The Kuroda-Osaka-Maezumi (#) (aka White Plum Asanga)
            Shikantaza+Koan School of Zen Buddhism 		76  424  Est. 1979, in Los Angeles US [658]Maezumi, Hirotaka Taizan Hakuyū (1931-1995)[217]
            All 3 Schools 149716n/a  n/a  

First elements of the forthcoming descriptive statistics:

Table 1. Numbers of teachers and lineages
in Zen schools that combine Koans and Shikantaza practice
Last updated: 01 May 2026.
ALL SCHOOLS
generating Hoshi, Sensei and Roshi level teachers 		ALL TEACHERS
at the Hoshi, Sensei and Roshi levels
SCHOOL Est. Years of
operation
till 2026		 Identified, so far,
teachers from the three
interconnected Schools		 Lineages Barren Teachers
(no heirs)		 Regular Teachers
(1-2 heirs)		 Bountiful Teachers
(more than 2 heirs)
Harada Sogaku 1924? 102 34 (100%) 9 (6.0%) [forthcoming data] [forthcoming data] [forthcoming data]
Harada-Yasutani 1954 72 259 (100%) 64 (42.9%) [forthcoming data] [forthcoming data] [forthcoming data]
Kuroda-Osaka-Maezumi 1979 47 424 (100%) 76 (51.0%) [forthcoming data] [forthcoming data] [forthcoming data]

TOTAL

n/a n/a 717 (100%) 149 (100%) [forthcoming data] [forthcoming data] [forthcoming data]
Copyright (c) 2026-present by T. Matthew Ciolek.

I invite - with grateful bows - corrections, updates, addenda and suggestions for improvements - tmciolek, 01 May 2026
Granular biographical information, especially dates [preferably in 'dd mm yyyy' format]
of the major milestones in the course of Zen training and the teacher's life and work,
as well as information about online documents with details of Zen groups and centers are enthusiastically welcome.
Please send an email to Dr T. Matthew Ciolek matthew.ciolek@gmail.com

31 years online and counting

This document is a part of the Zen Buddhism section of the Buddhist Studies WWW Virtual Library.

Edited by Dr T. Matthew Ciolek
This version was proofread on the date of issue with Sonnet 4.6 by Anthropic AI.


a work in progress since 13 Apr 1995 - tmc
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Go to Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Zen Buddhism - References & Footnotes no. 001-200. 
Go to Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Zen Buddhism - References & Footnotes no. 201-400. 
Go to Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Zen Buddhism - References & Footnotes no. 401-600. 
Go to Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Zen Buddhism - References & Footnotes no. 601-800. 
  Go to Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Zen Buddhism - References & Footnotes no. 801-1000. 
Go to Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Zen Buddhism - References & Footnotes no. 1001-1200. 
Go to Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Zen Buddhism - References & Footnotes no. 1201-1400. 
Go to Harada Sogaku, Kuroda-Osaka-Maezumi & Harada-Yasutani Schools of Zen Buddhism - References & Footnotes no. 1401-1600. 

Introductory notes, select Terminology and Acknowledgements

Maintainer: Dr T. Matthew Ciolek (matthew.ciolek@gmail.com)

Copyright (c) 1995-present by T. Matthew Ciolek. This Web page may be linked to any other Web pages. Contents may not be altered.

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