Tokyo District Court, Reiwa 5 (Wa) 70346 [Wireless scuff plate] <Nakashima>
Updated: Oct 9
Article information
Article type: Case note
Categories: Patents
Topics: Claim interpretation
First published on this website: 2026-10-07
Display and classification checked: 2026-10-07
Tokyo District Court, Reiwa 5 (Wa) 70346 [Wireless scuff plate] <Nakashima>
* The claim term “adjustable” was construed as meaning capable of precise adjustment.
⇒ Active “adjustment” is required!!
(Excerpt from the judgment, translated)
Claim element F provides that “the time interval between its on and off states is adjustable.” As to the meaning of “adjustable,” paragraph [0014] of the specification states that “the control module 6 can intelligently adjust the time interval between the on and off states according to the sensing signal,” and paragraph [0019] states that “the control module can switch the light on or off, or control the duration of illumination.” In light of claim element F and those descriptions, and considering the meaning of “intelligently” and “control” in the specification, it is appropriate to construe “adjustable” in claim element F as meaning capable of precisely adjusting the “duration of illumination.” ...
In the defendant's product ..., when the backlight module is left in the on (illuminated) state, it gradually dims and goes out. This happens because the module is affected by charging or discharging of the connected capacitor, rather than because the time until it goes out is controlled through a control circuit or control program for precisely adjusting the duration of illumination. ...
https://lnkd.in/gjzeY7xf
Original article (2025-11-17):
https://lnkd.in/gpGxpNcn
Related articles
Update history
Content changes and display maintenance are recorded separately.
2026-10-07: First published from the original LinkedIn post; categories, article information, and consultation navigation added.
Comments