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Instructors

Shinbukan school’s senseis and their backgrounds

Professor Hans Ingebretsen


Professor  Hans Ingebretsen has been practicing martial art since 1974, and holds the rank of shichidan in kenpo karate (through the American Jujitsu Institute) and shichidan (seventh degree black belt) in Danzan Ryu Ju Jitsu (through Kilohana Martial Arts Association). He is ranked Hapa Lima Kekele’ele’ele (fifth degree black belt) in the Kaihewalu family lua system, and is a kumu lua (instructor) of the art. Hans also has the rank of godan (fifth degree black belt) in Ken Ju Ryu Kenpo Ju Jitsu, received from Shihan Russ Rhodes, founder of the Ken Ju Ryu System. Hans is recognized as rokudan in both the Pacific Jujitsu Alliance and the Hawaii Martial Arts Society. He has received an instructor’s certificate in Inayan Kadena de Mano Eskrima from Suro Jason Inay, the head of the Inayan System of eskrima, and also has a sandan (third degree black belt) in Kodokan Judo through the United States Judo Association.  Hans is also the Headmaster of Ku’i Lima Kenpo.

In 1992 he was awarded a Renshi grade teaching license in Danzan Ryu by Professor Sig Kufferath, the Headmaster of the system, with whom he trained for 14 years. He is a graduate of Prof. Kufferath’s 1992 okugi class, and was one of the instructors for the Kilohana Ku’i Lima Okugi class in 2003.    

Besides training with Prof. Kufferath (ju jitsu, kenpo), Shihan Russ Rhodes (ju jitsu, kenpo), Prof. Dale Kahoun (judo, ju jitsu), Suro Jason Inay (eskrima) and ‘Olohe Solomon Kaihewalu (lua), Hans’ instructors include Sensei Ben Patterson (judo & ju jitsu), Sensei Richard Koahili (aikido), Sensei Chris Bere (shotokan), Dai Shihan Bill Montero (ju jitsu), Sensei Brian Fitzgerald (ju jitsu), Sensei Lonnie Honda (judo), Sensei Dave Long (judo), Sensei Mark Milstead (kenpo), Mangisusuro Mike Inay (eskrima), and Prof. Charlie Robinson (judo).  
He is a past president and one of the founders of Kilohana Martial Arts Association, and served for 11 years as vice president of Kilohana. Through his martial arts marketing business, Zanshin Enterprises, Hans promotes many seminars and tournaments.A former member of the San Jose State varsity judo squad, as well as other teams, he now coaches his own judo team, and is also active in promoting sport ju jitsu competitions. His own tournament, the Mokomoko Invitational, has been held annually since 2003, and includes competition in karate, ju jitsu and eskrima. Known for promoting many martial arts events, Hans is the creator of the San Jose Gasshuku training camp, which for many years was the pre-eminent cross-training camp, has hosted the Kilohana Masters Seminar for numerous years, has taught for many years at Camp Kilohana, and has been on staff at Camp Bushido West as an instructor since 2001.  He has taught extensively throughout the U.S., Mexico and Europe, and hosts many camps and clinics in the San Francisco Bay Area.  Hans is a certified instructor in Danzan Ryu Ju Jitsu, Ken Ju Ryu Kenpo Ju Jitsu, Kodokan Judo, Kenpo Karate, Hawaiian Lua and Inayan Kadena De Mano Eskrima.

Sensei Clayton Conrad


Sensei Clayton Conrad started in the world of martial arts at the age of 5 when he began learning Police Ju-jitsu from his father who was a former Marine Corps drill instructor and combat veteran. At a young age he also began studying Judo, receiving his shodan in 1981.

Sensei Clayton, with his parents’ permission, joined the Marine Corps at the age of 16. During his time in the service, he became an instructor for anti-guerrilla tactics and instructed in arms and materials interdiction, jungle warfare, and hand to hand combat to in-country forces. During this time, he trained in a number of styles of Martial Arts.

Sensei Clayton started working with Asc. Professor Hans Ingebretsen at the Shinbukan dojo in Campbell, CA in Nov. 2005. There he studied Hawaiian Lu’a, Danzan Ryu Jujitsu and Ken Ju Ryu Kenpo Jujitsu. Working with Asc. Professor Hans Ingebretsen at Shinbukan Dojo, Sensei Clayton attained his 3rd Dan in both Kui Lima Kenpo and Danzan Ryu Ju-jitsu. Further, under the instruction of Asc. Professor Ingebretsen and ‘Olohe Solomon Kaihewalu, Sensei Clayton received the rank of Kumu (Instructor) in Kaihewalu Lu’a in 2009. He also holds a 3rd Dan in Goshin-Jitsu from Professor James Muro.
Mr. Conrad is active in Judo and holds an N-3 as a national judo referee. He also practices Seifukujitsu, the Okazaki message therapy and Chinese massage. He was Vice President of the Kilohana Martial Arts Organization 2007-2009.

Mr. Conrad currently teaches both the adult and children classes at the Shinbukan dojo in Campbell, Ca. instructing in Kenpo, Ju-jitsu, and Judo with Asc. Professor Hans Ingebretsen.

Sensei Kate DeMoss


Kate DeMoss, Ph.D., CMT, CKTP™ has been a deep tissue and sports massage therapist for over 25 years.  Her clientele ranges from children to seniors, from office workers to martial artists.  She uses a multi-disciplinary approach and is currently in private practice.
She is a board member and instructor for the Kilohana School of Massage and Healing Arts.  Her many credentials in massage include Certified Massage Therapist by the California Massage Therapy Council, Nationally Certified in Therapeutic Massage and Bodywork, Associated Bodywork and Massage Professionals Certified Massage Therapist, and Certified Kinesio Taping Practitioner™.

She has been training in Danzan Ryu Jujitsu for several years with Professor Hans Ingebretsen of Shinbukan Dojo and holds the rank of Sandan.  Concurrently, she has also studied Hawaiian Lua and has been awarded the rank of Kumu (instructor) by ‘Olohe Solomon Kaihewalu.  Her Sandan rank in Danzan Ryu Jujitsu is also recognized by the Pacific Jujitsu Institute. Of additional interest, she earned a Ph.D. in Chemistry from the University of Michigan.

In Memoriam: Sensei Charlie Robinson


Charlie grew up in a small community in Southern California that was 25% Japanese, thus affording him exposure to martial art. In 1940, at the age of 10, he began studying jujitsu techniques from a Japanese neighbor, Mr. Nakagawa. He studied with him for 1 ½ years. It wasn’t until he was stationed at Travis Air Force Base in the 1950s that he returned to the martial arts, studying judo and goshin jitsu with Sensei Walter Todd and Sensei George Harris as his teachers and mentors. He began competing shortly afterward.

A judo club was started at Beal AFB in the 1960s and Sensei Robinson instructed 23 competitors who placed in the top 3 places in military and national competition. Charlie was the National 175 lb. Champion in 1975 and the 78kg Masters champion in 1989. Charlie maintained a judo school from 1960 until a few years ago, and also taught at the Yuba Community College.

His dojo, Twin Cities Judo, in Yuba City, California, was a judo Mecca that many judoka traveled to in order to learn from Charlie. His techniques were simple and elegant, harkening back to Sensei Mifune’s effortless style of judo. He encouraged judoka to learn from him, but to make the techniques their own, telling them, “Do it exactly similar to what I just showed you.” He loved to share, and was a fixture at Camp Bushido at Colorado Springs, and also started his own camp, Camp Bushido West, where he spread the judo gospel for almost 30 years.

Charlie’s great love was his family. His wife of over 50 years, Shirley, was the apple of his eye. His two sons, Greg and Michael, were both accomplished judokas and competitors. He cared for his family in his simple manner, and taught them the great lessons he carried in his heart. Honor, respect, self-confidence, commitment, perseverance, integrity in all things, best effort, and dignity of all people.

Charlie traveled thew United States sharing his special brand of judo, making the complex simple and the simple, complex. Asking why you took two steps when you could take one. He never traveled by plane; either driving, taking a train or bus, the countless thousands of miles over his lifetime to teach at far away location. He never asked for any money, usually coming out of his own pocket.

One of Charlie’s favorite stories was telling how he viewed his opponent in a judo tournament. He would say, “they made two mistakes. They showed up, and then drew me.” It was all in good humor as Charlie had the greatest respect for everyone.   If you stepped on the wrong side of the “what is right” line, he was not shy in voicing his opinion, but was the first in line to help remedy any difficult situation. Charlie always said, “It is not difficult to know what the right thing is to do.”

Sensei Charlie rose to a very rarefied air in the judo world, achieving the rank of hachidan, eighth degree black belt. This also takes into consideration that he remained a sandan, third degree black belt for 27 years, never asking for promotion. Serving on numerous boards and committees in his beloved United States Judo Association (USJA), his service to the judo world is unparalleled. Often eschewing personal notoriety he was the one who simply got the work done.

There are too many black belts to name throughout the United States that were promoted to black belt, and higher ranks by Charlie. One comment he made to a student who was questioning his own proficiency was, “Here are the keys to the belt. Learn to drive it,” meaning he was confident in the students ability to gain the confidence and move forward to learn more. Ever the mentor and life long supporter, the list of students who owe much of their judo knowledge and advancement to Charlie will go forward knowing they had one of the greatest teachers and guides anyone could ask for.

In his later years, Charlie still gave his best. Towards the end of his life, at one tournament in Sacramento with Gary Goltz, President of the USJA and one of Sensei Goltz’ students, a former marine and community firefighter, Charlie, sitting in his walker chair, taught the students a move. The student stepped out onto the mat for his first match, bowed, and then preformed the exact technique he had just learned on his opponent and throwing his in less than 30 seconds for an ippon. Walking back to his line the student looked to Charlie, and made a quiet simple bow to acknowledge Charlie. Charlie just smiled.

When Charlie has passed, and his sons wanted to know how many people would be coming, they were worried that it might be only a few as many of Charlies long time friend had passed away too. Asking if there might be around 20 judoka to attend, one of Charlies longtime students, answered, “I think you will need the big room” Coming from far and wide, the large chapel seating hundreds was full. Most in attendance were in the twenties or thirties. This is a testament to a life that continued to be lived well, giving from the heart, to the passion and loved that had been his life’s calling. Judo.

Charlie trained and studied with so many incredible judoka. Olympians such as Jim Bregman, the aforementioned George Harris, Ben Nighthorse Campbell, AnnMaria DeMars Rousey, Ronda Rousey. His Sensei in Japan was Sumiyuki Kotani, a student of the founder of judo, Jiguro Kano and his top student Kyuso Mifune, both 10th degree black belts of the world famous and headquarters of world judo, the Kodokan.

In the USJA manual, in one of the front pages, there was picture of Charlie Robinson. The captioned said, “One of the most beloved sensei.”

Charlie was respected, admired, honored, and revered by most that he met… and yes, he was dearly loved.

The life and times of Charles Robinson can be used as a guide star, a moral compass, and a great example of the maxims of judo; maxim efficiency and mutual benefit and welfare.