Company Filing History:
4 out of 405 
1 out of 107 
1 out of 1,960 
Years Active: 1988-1994
Title: Kihachi Shishido: Innovator in Low Temperature Heat Shrinkable Film
Introduction
Kihachi Shishido is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of materials science, particularly in the development of low temperature heat shrinkable films. With a total of 5 patents to his name, Shishido's work has had a considerable impact on various industries.
Latest Patents
One of Shishido's latest patents is focused on a low temperature heat shrinkable film and the process for producing it. This innovative film comprises a linear low density polyethylene resin with a short branched chain and a density of 0.935 g/cm³. The film properties include a haze value of 5% or less, heat shrinkages at 90°C in the machine (M) and transverse (T) directions of 30% or more and 5% or less, respectively. Additionally, the shrinkage stress at 90°C in the M direction is 300 g/mm² or more. This transparent film exhibits excellent low temperature heat shrinkability and can be produced by drawing the polyethylene resin film between two rolls with a diameter of 200 mm or less at an air gap of 10 mm or less, with a draw ratio of 3.0 to 6.0. Furthermore, an inflation film with a multilayer structure can be created by press bonding or drawing multiple films made from the same polyethylene resin, resulting in a laminate film that boasts excellent transparency, strength, and uniform thickness.
Career Highlights
Throughout his career, Kihachi Shishido has worked with prominent companies such as Showa Denko and Fuso Pharmaceutical Industries, Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in material technology.
Collaborations
Shishido has collaborated with notable coworkers, including Toshio Taka and Takuo Ohkubo. Their combined expertise has likely fostered innovative ideas and solutions in their respective fields.
Conclusion
Kihachi Shishido's contributions to the development of low temperature heat shrinkable films highlight his innovative spirit and dedication to advancing material science. His patents and collaborations reflect a commitment to excellence and innovation in his field.