TSUMURA KENJI has a total of 17 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology are KCON KK, OZAKI NORIMASA and ROWE J K.
Effector for guitar having electromagnetic wave preventing sheet board and electronic device related to guitar provided with effector having electromagnetic wave preventing sheet board
JP2001166776A
Insulating circuit and musical instrument device that incorporates the circuit
JP2001013967A
Guitar allowing timbre control in plane manipulation part
JPH1115472A
Electromagnetic transducer for guitar
JPH113446A
Job managing device
JPH113410A
Bar code seal
JPH10319962A
Guitar provided with magnetic flux attenuator and string vibration maintaining device for bass
JPH09274009A
Oxygen concentration meter and oxygen concentration sensor using the oxygen concentration meter
JPH09234217A
Electric cloth-like body
JPH09161111A
Customer visiting schedule arranging device
JPH0798585A
Electronic stringed instrument
JPH0271891A
Solar still containing heat storage tank
JPS6434486A
Seawater desalination apparatus using solar heat
JPS58145854A
Water heater utilizing solar heat
JPS5626579A
Convection system laminating type multiple effect distilling method and its distiller
JPS55127102A
Heat diffusion type solar heat evaporation system and evaporator thereof
