Ricoh had 17 patents in batteries during Q1 2024. The patents filed by Ricoh Co Ltd in Q1 2024 include a liquid composition for forming a porous resin with high light transmittance and a process for polymerization resulting in a specific haze value increase rate. Another patent involves a liquid composition for electrodes in electrochemical devices, containing inorganic particles, resin soluble in non-polar solvent, and a dispersant, resulting in excellent adhesion and device characteristics. GlobalData’s report on Ricoh gives a 360-degree view of the company including its patenting strategy. Buy the report here.

Ricoh grant share with batteries as a theme is 41% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Liquid composition, laminated structure body, method of manufacturing laminated structure body, and method of manufacturing power storage element or power generation element (Patent ID: US20240047682A1)

The patent filed by Ricoh Co Ltd. describes a liquid composition containing a polymerizable compound and a liquid that forms a porous resin through polymerization. The composition must have a light transmittance of at least 30% at a wavelength of 550 nm and an increase rate of haze value of 1.0% or more during the polymerization process. The polymerizable compound includes a functional group capable of forming a covalent bond with a hydroxyl group, such as isocyanate, epoxy, or silanol groups. The resulting porous resin has specific pore sizes, porosity, and co-continuous structure.

Furthermore, the liquid composition can be used to create insulating layers for power storage or generation elements. The polymerizable compound can have a polymerizable group like (meth)acryloyl or vinyl groups, and the composition must have a specific viscosity and boiling point range. The method of manufacturing a laminated structure body involves applying the liquid composition to a base material and polymerizing it using heat or light. Additional steps may include forming covalent bonds between different functional groups in the polymerizable compounds and heating after polymerization. The resulting laminated structure body can be used in power storage or generation elements, highlighting the potential applications of this innovative liquid composition.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.