Company Filing History:
3 out of 42,508 
1 out of 2 
1 out of 195 
Years Active: 1988-1990
Title: Ichiro Hitomi: Innovator in Hydraulic Machinery
Introduction
Ichiro Hitomi is a notable inventor based in Katsuta, Japan. He has made significant contributions to the field of hydraulic machinery, holding a total of 3 patents. His innovative designs focus on enhancing the efficiency and durability of hydraulic systems.
Latest Patents
One of Hitomi's latest patents is a lubricated bearing apparatus for hydraulic machinery. This invention features rotary-side ceramic sliding plates that are in contact with bearing-side ceramic sliding plates. The design includes receiving grooves in a main shaft sleeve member, which is fixed to the main shaft. Preventing portions are incorporated to protect the rotary-side ceramic sliding plates from damage due to centrifugal force. This allows for the use of ceramic materials on both sides, significantly extending the usable life of the bearing apparatus.
Another notable patent is an end face mechanical shaft seal designed for hydraulic machines. This seal includes a seal ring assembly that is detachably secured to a seal casing. The assembly features a sealing face that makes a sliding and fluid-tight contact with an annular seat face on the rotor shaft. The cartridge-type design includes a ring casing with an annular groove and a seal ring that is fixed to the casing by adhesive. The components are constructed from multiple arcuate sections, enhancing the overall functionality of the seal.
Career Highlights
Ichiro Hitomi has worked with prominent companies such as Hitachi, Ltd. and Kansai Electric Power Company. His experience in these organizations has contributed to his expertise in hydraulic machinery and innovation.
Collaborations
Hitomi has collaborated with notable coworkers, including Hisao Inoue and Osamu Sugimoto. Their combined efforts have led to advancements in hydraulic technology and improved machinery designs.
Conclusion
Ichiro Hitomi's contributions to hydraulic machinery through his innovative patents demonstrate his commitment to enhancing technology in this field. His work continues to influence the industry and improve the performance of hydraulic systems.