Company Filing History:
5 out of 6 
1 out of 140 Years Active: 1989-1993
Title: Jitsuo Nakata: Innovator in Welding and Gas Separation Technologies
Introduction
Jitsuo Nakata is a notable inventor based in Wakayama, Japan, recognized for his contributions to welding methods and gas separation technologies. With a total of five patents to his name, Nakata has made significant advancements in the field of materials engineering.
Latest Patents
One of Nakata's latest inventions is a welding method for aluminum alloys. This innovative MIG welding technique aims to prevent the formation and deposition of black powder on or around the weldment's bead. By utilizing pure aluminum wire or aluminum alloy wire containing less than 2.5 wt% of alloying components as the consumable electrode wire, and employing aluminum alloy wire as the filler wire, Nakata ensures that the alloy composition of the molten metal bath is equivalent to that of the base. This method effectively avoids the black powder formation on both sides of the weldment's bead.
Another significant patent involves a controlled process for xenon concentration. This invention relates to the feeding of liquid oxygen from the main condenser of the upper rectifying column of an air liquefying and separating unit into a xenon condensing column. The liquid oxygen is evaporated in varying amounts corresponding to the fluctuating amounts being fed into the xenon condensing column. The level and pressure of the liquid in the xenon condensing column are controlled, allowing for the venting of liquid oxygen at a constant level. This vented liquid oxygen is then converted into high-pressure oxygen gas, which is evaporated and supplied to a xenon absorptive column, ultimately recovered as liquid oxygen through heat exchangers.
Career Highlights
Throughout his career, Jitsuo Nakata has worked with prominent companies such as Kyodo Oxygen Co., Ltd. and Sumitomo Light Metal Industries, Ltd. His experience in these organizations has contributed to his expertise in welding and gas separation technologies.
Collaborations
Nakata has collaborated with notable coworkers, including Hideaki Takano and Masami Shino. Their joint efforts have furthered the development of innovative solutions in their respective fields.
Conclusion
Jitsuo Nakata's contributions to welding methods and gas separation technologies highlight his role as a significant inventor in Japan. His innovative patents continue to influence the industry and pave the way for future advancements.