In recent years, a number of actions have been taken in Japan for promoting kemari (football lifting), including the launch of Kemari-kikuyukai. However, kemari balls are rare items and not something everyone can casually use because they are made of deer skin, which is not readily available, and ball manufacturing itself requires high skills. There has also been a shortage of ball manufacturers (marishi) in these days. Developing and promoting the world of kemari will be difficult unless these challenges are overcome. In this study, therefore, we tried a new manufacturing method by using a laser beam machine owned by our school in an attempt to mimic the techniques adopted by traditional manufacturers. Experiments were conducted for material cutting, a key process in the ball making. Since our laser beam machine had never been used for leather products, we were able to obtain new knowledge through the experiments.

We also found that the laser beam machine can cut materials as accurately as marishi do. In addition, a new study method has been proposed, with which we can make good use of science technology in order to help promote Japan’s traditional performing arts and culture.

This study aimed at the realization of the CO2 gas shielded arc welding auxiliary equipment for both-upper limb disabilities.

This auxiliary equipment realized a sole operation type and a knee clip operation type to give response for variety of input.

Appearance tests and bending tests were conducted on test specimens after CO2 gas shielded arc welding using the realized auxiliary equipment. In the appearance tests, the knee clip operation type was passed to criteria of the qualification test of welding technicians. By contrast, the sole operation type was not passed to criteria of the qualification test of welding technicians. Both operation types failed to pass the strength criterions in the bending tests. This is due to the lack of weaving motion, which is essential for welding. In the future, the auxiliary equipment improve to allow weaving motion.

To explain the fungal contamination in the agricultural area of Asahikawa suburbs, we explained airborne fungal flora in three plastic greenhouses for hydroponic culture of vegetables and in the neighborhood area by use of an air sampler from February in 2007 to January in 2009. Furthermore, antifungal effects of sterilizer for several kinds of agriculture on 73 isolates of Botrytis spp. collected from airborne fungi and the vegetables were studied. As a result, it was revealed that 26 strains of 73 strains (36%) showed tolerance to Thiophanate-methyl (TM) / Iprodione (Ro) water dispersible powder agents.

ANCT-06001 of the multidrug-tolerant strain was accepted as Botrytis sp. NBRC 114508 in June, 2020.

One hundred and thirteen strains of Trichoderma spp., mycoparacite-fungi, isolated mainly from some green houses for cultivation of Lentinula edodes in Hokkaido were evaluated in terms of the superior growth on PDA (potato-dextrose-agar) plate-madia of pH≒9 and the antagonistic effects against wood rot fungi (Fomitopsis palustris MAFF 420001 and Trametes versicolor NBRC 30340).

Three strains of Trichoderma spp. (ANCT-05013，ANCT-05083，ANCT -05103) which were inoculated individually to charcoal particles strongly inhibited the wood rot fungi.

ANCT-05013 and ANCT-05103 which had been superior in ability to protect wood from rot, were accepted as NBRC 113097 and NBRC 113098, respectively (January, 2018).

The author once presented a theory about Kenji Miyazawa's poem, "Sapporo-shi (Sapporo City)". He proposed that the stage of this poem is Sapporo (not Hanamaki) : Nish 6-chome, Odori, Sapporo City. He pointed out that this address is the very site of "elm square to commemorate the cultivation". He was recently given an opportunity to describe the reasons or grounds of his theory. These are described in this article.